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
6,268 results · Clear filters · Feed
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High 7.1
WordPress Ofiz - Business Consulting Theme plugin <= 2.0 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in designthemes Ofiz - WordPress Business Consulting Theme ofiz allows Reflected XSS.This issue affects Ofiz - WordPress Business Consulting Theme: from n/a thr…
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High 7.1
WordPress Invico - WordPress Consulting Business Theme <= 1.9 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in designthemes Invico - WordPress Consulting Business Theme invico allows Reflected XSS.This issue affects Invico - WordPress Consulting Business Theme: from n…
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High 7.1
WordPress Wordpress Auto Spinner plugin <= 3.26.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ValvePress Wordpress Auto Spinner wp-auto-spinner allows Reflected XSS.This issue affects Wordpress Auto Spinner: from n/a through <= 3.26.0.
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High 7.1
WordPress CSS3 Compare Pricing Tables for WordPress plugin <= 11.6 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in QuanticaLabs CSS3 Compare Pricing Tables for WordPress css3_web_pricing_tables_grids allows Reflected XSS.This issue affects CSS3 Compare Pricing Tables for …
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High 7.1
WordPress Contest Gallery <= 26.0.6 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Wasiliy Strecker / ContestGallery developer Contest Gallery contest-gallery allows Stored XSS.This issue affects Contest Gallery: from n/a through <= 26.0.6.
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High 7.1
WordPress Infility Global plugin <= 2.13.4 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Infility Infility Global infility-global allows Reflected XSS.This issue affects Infility Global: from n/a through <= 2.13.4.
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High 7.1
WordPress Contact Form 7 Editor Button plugin <= 1.0.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in arisoft Contact Form 7 Editor Button cf7-editor-button allows Reflected XSS.This issue affects Contact Form 7 Editor Button: from n/a through <= 1.0.0.
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High 7.1
WordPress SMu Manual DoFollow plugin <= 1.8.1 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Stefan M. SMu Manual DoFollow manuall-dofollow allows Reflected XSS.This issue affects SMu Manual DoFollow: from n/a through <= 1.8.1.
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High 7.1
WordPress Pay with Contact Form 7 plugin <= 1.0.4 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in cmsMinds Pay with Contact Form 7 pay-with-contact-form-7 allows Reflected XSS.This issue affects Pay with Contact Form 7: from n/a through <= 1.0.4.
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High 7.1
WordPress Dot html,php,xml etc pages plugin <= 1.0 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in karimmughal Dot html,php,xml etc pages dot-htmlphpxml-etc-pages allows Reflected XSS.This issue affects Dot html,php,xml etc pages: from n/a through <= 1.0.
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High 7.1
WordPress Media Folder plugin <= 1.0.0 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kingdom Creation Media Folder media-folder allows Reflected XSS.This issue affects Media Folder: from n/a through <= 1.0.0.
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High 7.1
WordPress Tennis Court Bookings plugin <= 1.2.7 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in EZiHosting Tennis Court Bookings tennis-court-bookings allows Reflected XSS.This issue affects Tennis Court Bookings: from n/a through <= 1.2.7.
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High 7.2
WP Event Manager <= 3.1.50 - Unauthenticated Stored Cross-Site Scripting via 'organizer_name'
The WP Event Manager – Events Calendar, Registrations, Sell Tickets with WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘organizer_name' parameter in all versions up to, and including, 3.1.50 due to insufficient input sa…
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High 8.7
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
An issue has been discovered in GitLab CE/EE affecting all versions from 17.11 before 17.11.6, 18.0 before 18.0.4, and 18.1 before 18.1.2 that, under certain conditions, could have allowed a successful attacker to execute actions on behalf of users by injecti…
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High 8.0
An issue in Alteryx Server v.2023.1.1.460 allows HTML injection via a crafted script to the pages component.
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High 8.0
XSS Vulnerability in langgenius/dify
An XSS vulnerability exists in langgenius/dify versions prior to 1.1.3, specifically affecting Firefox browsers. This vulnerability allows an attacker to obtain the administrator's token by sending a payload in the published chat. When the administrator views…
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High 7.1
WordPress Zilom theme < 1.4.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in gavias Zilom zilom allows Reflected XSS.This issue affects Zilom: from n/a through < 1.4.5.
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High 7.1
WordPress Content Manager Light plugin <= 3.2 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in OTWthemes Content Manager Light content-manager-light allows Reflected XSS.This issue affects Content Manager Light: from n/a through <= 3.2.
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High 7.1
WordPress WP Wall plugin <= 1.7.3 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Vladimir Prelovac WP Wall wp-wall allows Reflected XSS.This issue affects WP Wall: from n/a through <= 1.7.3.
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High 7.1
WordPress SB Breadcrumbs plugin <= 1.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Hung Trang Si SB Breadcrumbs sb-breadcrumbs allows Reflected XSS.This issue affects SB Breadcrumbs: from n/a through <= 1.0.
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High 7.1
WordPress Homey theme <= 2.4.5 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in favethemes Homey homey allows Reflected XSS.This issue affects Homey: from n/a through <= 2.4.5.
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High 7.1
WordPress Pressroom theme <= 7.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in QuanticaLabs Pressroom pressroom allows Reflected XSS.This issue affects Pressroom: from n/a through <= 7.0.
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High 7.1
WordPress Rankie plugin <= 1.8.2 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ValvePress Rankie valvepress-rankie allows Reflected XSS.This issue affects Rankie: from n/a through <= 1.8.2.
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High 7.1
WordPress Testimonials Showcase plugin <= 1.9.16 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in cmoreira Testimonials Showcase testimonials-showcase allows Reflected XSS.This issue affects Testimonials Showcase: from n/a through <= 1.9.16.
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High 7.1
WordPress Neom Blog theme <= 0.0.9 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in awordpresslife Neom Blog neom-blog allows Reflected XSS.This issue affects Neom Blog: from n/a through <= 0.0.9.
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High 7.1
WordPress Team Showcase plugin < 25.05.13 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in cmoreira Team Showcase team-showcase-cm allows DOM-Based XSS.This issue affects Team Showcase: from n/a through < 25.05.13.
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High 7.1
WordPress Beautiful Cookie Consent Banner plugin <= 4.6.1 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Nikel Beautiful Cookie Consent Banner beautiful-and-responsive-cookie-consent allows Reflected XSS.This issue affects Beautiful Cookie Consent Banner: from n…
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High 7.1
WordPress Video List Manager plugin <= 1.7 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in thanhtungtnt Video List Manager video-list-manager allows Stored XSS.This issue affects Video List Manager: from n/a through <= 1.7.
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High 7.1
WordPress WP-Recall <= 16.26.14 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in tggfref WP-Recall allows Reflected XSS. This issue affects WP-Recall: from n/a through 16.26.14.
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High 7.1
WordPress JobSearch plugin < 3.0.6 - Reflected Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in eyecix JobSearch wp-jobsearch allows Reflected XSS.This issue affects JobSearch: from n/a through < 3.0.6.
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High 7.7
WordPress Chatra Live Chat + ChatBot + Cart Saver plugin <= 1.0.11 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Chatra Chatra Live Chat + ChatBot + Cart Saver allows Stored XSS. This issue affects Chatra Live Chat + ChatBot + Cart Saver: from n/a through 1.0.11.
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High 8.6
Citizen Short Description stored XSS vulnerability through wikitext
Short Description is a MediaWiki extension that provides local short description support. In version 4.0.0, short descriptions are not properly sanitized before being inserted as HTML using mw.util.addSubtitle, allowing any user to insert arbitrary HTML into …
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High 8.6
Citizen stored XSS vulnerability through short descriptions
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. From versions 1.9.4 to before 3.4.0, short descriptions set via the ShortDescription extension are inserted as raw HTML by the Citizen skin, allowing any user to insert arbitra…
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High 8.6
Citizen is vulnerable to stored XSS attack in the legacy search bar
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. From versions 1.9.4 to before 3.4.0, page descriptions are inserted into raw HTML without proper sanitization by the Citizen skin when using the old search bar. Any user with p…
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High 7.4
CVE-2025-27447
The web application is susceptible to cross-site-scripting attacks. An attacker can create a prepared URL, which injects JavaScript code into the website. The code is executed in the victim’s browser when an authenticated administrator clicks the link.
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High 8.6
Frappe authenticated XSS via data import
Frappe is a full-stack web application framework. Prior to versions 14.94.2 and 15.57.0, authenticated users could upload carefully crafted malicious files via Data Import, leading to cross-site scripting (XSS). This issue has been patched in versions 14.94.2…
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High 8.6
TabberNeue vulnerable to Stored XSS through wikitext
TabberNeue is a MediaWiki extension that allows the wiki to create tabs. Starting in version 3.0.0 and prior to version 3.1.1, any user can insert arbitrary HTMLinto the DOM by inserting a payload into any allowed attribute of the `<tabber>` tag. Version 3.1.…
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High 7.1
WordPress WPCRM - CRM for Contact form CF7 & WooCommerce plugin <= 3.2.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in mojoomla WPCRM - CRM for Contact form CF7 & WooCommerce wpcrm allows Reflected XSS.This issue affects WPCRM - CRM for Contact form CF7 & WooCommerce: from n/…
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High 7.1
WordPress FastBook plugin <= 1.1 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FasterThemes FastBook fastbook-responsive-appointment-booking-and-scheduling-system allows Stored XSS.This issue affects FastBook: from n/a through <= 1.1.
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High 7.1
WordPress Photo Express for Google plugin <= 0.3.2 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in thhake Photo Express for Google photo-express-for-google allows Reflected XSS.This issue affects Photo Express for Google: from n/a through <= 0.3.2.