Weakness (CWE)
CWE-79: Cross-site Scripting
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
How to prevent it (8 mitigations)
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Examples of libraries and frameworks that make it easier to generate properly encoded output include Microsoft's Anti-XSS library, the OWASP ESAPI Encoding module, and Apache Wicket.
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Implementation, Architecture and Design
Understand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages. Study all expected communication protocols and data representations to determine the required encoding strategies.
For any data that will be output to another web page, especially any data that was received from external inputs, use the appropriate encoding on all non-alphanumeric characters.
Parts of the same output document may require different encodings, which will vary depending on whether the output is in the:
- HTML body
- Element attributes (such as src="XYZ")
- URIs
- JavaScript sections
- Cascading Style Sheets and style property
etc. Note that HTML Entity Encoding is only appropriate for the HTML body.
Consult the XSS Prevention Cheat Sheet [REF-724] for more details on the types of encoding and escaping that are needed.
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Architecture and Design, Implementation
Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
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Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
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Architecture and Design
If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.
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Implementation
Use and specify an output encoding that can be handled by the downstream component that is reading the output. Common encodings include ISO-8859-1, UTF-7, and UTF-8. When an encoding is not specified, a downstream component may choose a different encoding, either by assuming a default encoding or automatically inferring which encoding is being used, which can be erroneous. When the encodings are inconsistent, the downstream component might treat some character or byte sequences as special, even if they are not special in the original encoding. Attackers might then be able to exploit this discrepancy and conduct injection attacks; they even might be able to bypass protection mechanisms that assume the original encoding is also being used by the downstream component.
The problem of inconsistent output encodings often arises in web pages. If an encoding is not specified in an HTTP header, web browsers often guess about which encoding is being used. This can open up the browser to subtle XSS attacks.
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Implementation
With Struts, write all data from form beans with the bean's filter attribute set to true.
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Implementation
To help mitigate XSS attacks against the user's session cookie, set the session cookie to be HttpOnly. In browsers that support the HttpOnly feature (such as more recent versions of Internet Explorer and Firefox), this attribute can prevent the user's session cookie from being accessible to malicious client-side scripts that use document.cookie. This is not a complete solution, since HttpOnly is not supported by all browsers. More importantly, XmlHttpRequest and other powerful browser technologies provide read access to HTTP headers, including the Set-Cookie header in which the HttpOnly flag is set.
Source: MITRE CWE-79
32,589 results · Feed
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Medium 4.3
Dianping CAT Report hourlyReport.tag Model.getDomain cross site scripting
A vulnerability has been found in Dianping CAT 3.0.0/3.1.0/4.0-RC1. This vulnerability affects the function Model.getDomain of the file WEB-INF/tags/hourlyReport.tag of the component Report Handler. The manipulation of the argument domain leads to cross site …
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Medium 5.4
IBM App Connect Enterprise web user interface and Administration REST API are vulnerable to html injection
IBM App Connect Enterprise 13.0.1.0 through 13.0.8.2, and 12.0.1.0 through 12.0.12.30 could allow a remote attacker to inject arbitrary HTML due to improper output neutralization.
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Medium 4.2
IBM App Connect Enterprise web user interface and Administration REST API are vulnerable to html injection
IBM App Connect Enterprise 13.0.1.0 through 13.0.8.2, and 12.0.1.0 through 12.0.12.30 could allow a remote attacker to perform content spoofing due to improper output encoding of error messages.
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High 8.1
IBM QRadar SIEM is vulnerable to Open Redirect and Reflected XSS
IBM QRadar 7.5.0 through 7.5.0 Update Pack 16 Interim Fix 02, and 7.6.0.0 through 7.6.0.5 is vulnerable to Reflected XSS. A victim must open a specifically crafted URL while authenticated to QRadar to trigger this.
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Medium 6.5
WordPress WCFM – Frontend Manager for WooCommerce plugin <= 6.8.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WC Lovers WCFM – Frontend Manager for WooCommerce wc-frontend-manager allows Stored XSS.This issue affects WCFM – Frontend Manager for WooCommerce: from n/a …
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Medium 6.5
WordPress AnyWhere Elementor plugin <= 1.3.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPVibes AnyWhere Elementor anywhere-elementor allows Stored XSS.This issue affects AnyWhere Elementor: from n/a through 1.3.0.
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Medium 4.8
Webmin through 2.670 Stored XSS via Shorewall and Shorewall6 list.cgi
Webmin through 2.670 contains a stored cross-site scripting vulnerability in the Shorewall and Shorewall6 modules' list.cgi, which renders table fields and COMMENT lines unescaped. Authenticated users with table edit permission can store JavaScript via savecm…
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Medium 6.1
MRBS before 1.12.3 Reflected XSS via error parameter of view_entry.php
MRBS (Meeting Room Booking System) before 1.12.3 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject script via the error parameter of view_entry.php. Attackers can send crafted links to logged-in users to r…
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High 8.8
Turisbook Booking System <= 1.3.8 - Unauthenticated Stored XSS via Cart Background Setting
The Turisbook Booking System WordPress plugin through 1.3.8 does not have authorisation and CSRF checks when saving its settings, and does not sanitise and escape one of them before outputting it in an admin page, allowing unauthenticated users to perform Sto…
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Low 3.5
Secure Custom Fields < 6.9.8 - Admin+ Stored XSS via HTML Attribute Name Injection into Field Definition
The Secure Custom Fields WordPress plugin before 6.9.8 does not sanitize a persisted field definition before emitting part of it as an HTML attribute name, allowing a user able to configure its fields to store a payload that executes as JavaScript in the brow…
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Medium 6.1
SunEditor 3.0.0 before 3.4.0 Stored XSS via html.clean() Iframe Placeholder
SunEditor from 3.0.0 before 3.4.0 contains a stored cross-site scripting vulnerability in html.clean() that rebuilds iframes from data-se-iframe-holder-attrs JSON without filtering srcdoc or uppercase SRC keys. Attackers can inject crafted HTML through paste,…
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Medium 6.1
OpenAM before 16.1.4 Open Redirect and XSS via goto and gotoOnFail
OpenAM before 16.1.4 contains an open redirect and cross-site scripting vulnerability that allows remote attackers to control post-login and logout destinations via the goto and gotoOnFail parameters. Attackers can craft OpenAM login or logout links that redi…
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Medium 4.8
OpenAM before 16.1.4 Stored XSS via OAuth 2.0 Consent Page Display Name
OpenAM before 16.1.4 contains a stored cross-site scripting vulnerability that allows privileged attackers to inject script by placing markup in a user's display name. When the victim reaches the OAuth 2.0 / OpenID Connect consent page, the unencoded name exe…
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High 7.2
Subscribe2 – Form, Email Subscribers & Newsletters <= 10.47 - Unauthenticated Stored Cross-Site Scripting via 'data[ip]' Parameter
The Subscribe2 – Form, Email Subscribers & Newsletters plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data[ip]’ parameter in all versions up to, and including, 10.47 due to insufficient input sanitization and output escaping. This …
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Medium 6.5
WordPress Meta Box – WordPress Custom Fields Framework plugin <= 5.15.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in eLightUp Meta Box – WordPress Custom Fields Framework meta-box allows Stored XSS.This issue affects Meta Box – WordPress Custom Fields Framework: from n/a th…
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Medium 6.5
WordPress Unlimited Elements For Elementor (Free Widgets, Addons, Templates) plugin <= 2.0.26 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Unlimited Elements Unlimited Elements For Elementor (Free Widgets, Addons, Templates) unlimited-elements-for-elementor allows Stored XSS.This issue affects U…
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Medium 6.5
WordPress Everest Forms plugin <= 3.6.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Everest Forms Everest Forms everest-forms allows Stored XSS.This issue affects Everest Forms: from n/a through 3.6.3.
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Medium 6.5
WordPress WpBookingly plugin <= 1.4.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Magepeople inc. WpBookingly service-booking-manager allows Stored XSS.This issue affects WpBookingly: from n/a through 1.4.3.
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Medium 6.5
WordPress JetEngine plugin <= 3.9.0.2 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Crocoblock JetEngine jet-engine allows Stored XSS.This issue affects JetEngine: from n/a through 3.9.0.2.
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Medium 6.4
Flipbox <= 3.1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'flip-box-image-upload-url-01-alt' Parameter
The Image Hover Effects Ultimate Visual Composer (Flipbox - Awesomes Flip Boxes Image Overlay) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'flip-box-image-upload-url-01-alt' parameter in versions up to, and including, 3.1.1. This…
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Medium 6.4
Active Woot Products Tables for WooCommerce. 100% FREE <= 2.1.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'help_title' Shortcode Attribute
The Active Woot Products Tables for WooCommerce. 100% FREE plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'help_title' parameter in all versions up to, and including, 2.1.5 due to insufficient input sanitization and output escaping.…
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High 7.2
Download Manager <= 7.5.9 - Unauthenticated Stored Cross-Site Scripting via Registration Form (WP_Error-as-ID) via Spotlight Template [author_name]
The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wpdm_reg[first_name], wpdm_reg[last_name], wpdm_reg[user_login]' parameter in all versions up to, and including, 7.5.9 due to insufficient input sanitization and o…
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High 7.1
WordPress TranslatePress plugin <= 3.3.8 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Cozmoslabs TranslatePress translatepress-multilingual allows Stored XSS.This issue affects TranslatePress: from n/a through 3.3.8.
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Medium 5.4
JetFormBuilder <= 3.6.8 - Unauthenticated Stored Cross-Site Scripting via Dynamic Value Block `to_set` Property
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'note (form field whose value is written to post meta `note`)' parameter in all versions up to, and including, 3.6.8 due to insufficient…
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High 7.2
VikBooking Hotel Booking Engine & PMS <= 1.8.17 - Unauthenticated Stored Cross-Site Scripting via 'guests[][][documents]' Parameter
The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'guests[][][documents]' Parameter in all versions up to, and including, 1.8.17 due to insufficient input sanitization and output escaping. This mak…
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High 7.2
Quttera ThreatSign <= 4.1.0.48 - Unauthenticated Stored Cross-Site Scripting via User-Agent Header
The Quttera ThreatSign – Web Malware Scanner for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'HTTP_USER_AGENT' parameter in all versions up to, and including, 4.1.0.48 due to insufficient input sanitization and output e…
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Medium 4.7
Real Testimonials <= 4.1.0 - Unauthenticated Stored Cross-Site Scripting via 'tpro_client_name' Parameter
The Real Testimonials – Testimonial Slider, Collect Customer Reviews and Video Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tpro_client_name' parameter in all versions up to, and including, 4.1.0 due to insufficient …
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High 7.2
WP Visitor Statistics (Real Time Traffic) <= 8.9.0 - Unauthenticated Stored Cross-Site Scripting via 'os' / 'browser' / 'res' Tracker Parameters
The WP Visitor Statistics (Real Time Traffic) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'os (also browser, res)' parameter in all versions up to, and including, 8.9.0 due to insufficient input sanitization and output escaping. …
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High 7.2
User Frontend <= 4.3.13 - Unauthenticated Stored Cross-Site Scripting via Taxonomy Field Text-Input
The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '<taxonomy_field_name> (default: 'category')' paramet…
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High 7.2
JetFormBuilder <= 3.6.7 - Unauthenticated Stored Cross-Site Scripting via Form Record Preset Source
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '<any form field name — e.g. 'payload'>' parameter in all versions up to, and including, 3.6.7 due to insufficient input sanitization an…
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Medium 6.4
Football Pool <= 2.13.5 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Shoutbox Message
The Football Pool plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'shouttext' parameter in all versions up to, and including, 2.13.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated…
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Medium 6.4
Modula Image Gallery <= 3.0.17 - Authenticated (Author+) Stored Cross-Site Scripting via 'items' Parameter
The Modula plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'items' parameter in versions up to, and including, 3.0.17 This is due to insufficient input sanitization of the per-image 'link' field in the save_merged_items() REST handle…
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High 7.2
Church Admin <= 5.1.7 - Unauthenticated Stored Cross-Site Scripting via 'lat' Parameter
The Church Admin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'lat' parameter in all versions up to, and including, 5.1.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attac…
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Medium 5.4
Real Testimonials <= 4.1.0 - Unauthenticated Stored Cross-Site Scripting via JPEG IPTC Caption + '[gallery]' Shortcode Chain
The Real Testimonials – Testimonial Slider, Collect Customer Reviews and Video Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tpro_client_image (JPEG IPTC caption) + tpro_client_testimonial ([gallery] shortcode)' param…
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High 7.2
WS Form LITE <= 1.12.18 - Unauthenticated Stored Cross-Site Scripting via Text Field Array Value
The WS Form LITE – Drag & Drop Contact Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'field_<id>[0][0]' parameter in all versions up to, and including, 1.12.18 due to insufficient input sanitization and output escaping…
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High 7.2
Happyforms Pro <= 1.38.9 - Unauthenticated Stored Cross-Site Scripting via 'happyforms_client_referer' Parameter
The Happyforms Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'happyforms_client_referer' parameter in all versions up to, and including, 1.38.9 due to insufficient input sanitization and output escaping. This makes it possible …
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High 7.2
WP Visitor Statistics (Real Time Traffic) <= 8.7.1 - Unauthenticated Stored Cross-Site Scripting via 'browser' Parameter
The WP Visitor Statistics (Real Time Traffic) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'browser' parameter in all versions up to, and including, 8.7.1 due to insufficient input sanitization and output escaping. This makes it p…
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Medium 5.4
Real Testimonials <= 4.1.0 - Unauthenticated Stored Cross-Site Scripting via Testimonial Submission Form 'tpro_client_testimonial' Parameter
The Real Testimonials – Testimonial Slider, Collect Customer Reviews and Video Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tpro_client_testimonial' parameter in all versions up to, and including, 4.1.0 due to insuff…
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Medium 6.4
weDocs: AI Powered Knowledge Base, Docs, Documentation, Wiki & AI Chatbot <= 2.6.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'modalPlaceholder' Block Attribute
The weDocs: AI Powered Knowledge Base, Docs, Documentation, Wiki & AI Chatbot plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'modalPlaceholder' Block Attribute in all versions up to, and including, 2.6.1 due to insufficient input saniti…
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Medium 6.4
WP-Members Membership Plugin <= 3.5.7 - Authenticated (Subscriber+) Stored Cross-Site Scripting via WooCommerce Checkout Multicheckbox/Multiselect Field
The WP-Members Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via WooCommerce Checkout Multicheckbox/Multiselect Field (scalar bypass of wpmem_sanitize_array) in all versions up to, and including, 3.5.7 due to insufficient…