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)
-
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.
-
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.
-
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.
-
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.
-
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.
-
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.
-
Implementation
With Struts, write all data from form beans with the bean's filter attribute set to true.
-
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
6,245 results · Clear filters · Feed
-
High 7.1
WordPress FV Player 8 plugin <= 8.1.8 - Cross Site Scripting (XSS) vulnerability
Unauthenticated Cross Site Scripting (XSS) in FV Player 8 <= 8.1.8 versions.
-
High 7.1
WordPress Social Share Icons & Social Share Buttons plugin <= 3.7.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Inisev Social Share Icons & Social Share Buttons ultimate-social-media-plus allows Reflected XSS.This issue affects Social Share Icons & Social Share Buttons…
-
High 7.1
WordPress Jannah theme < 7.6.8 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in TieLabs Jannah jannah allows Reflected XSS.This issue affects Jannah: from n/a before 7.6.8.
-
High 7.1
WordPress Qode Real Estate plugin <= 1.1.7.3 - Cross Site Scripting (XSS) vulnerability
Unauthenticated Cross Site Scripting (XSS) in Qode Real Estate <= 1.1.7.3 versions.
-
High 7.1
WordPress Qode Music plugin <= 2.1.8.2 - Cross Site Scripting (XSS) vulnerability
Unauthenticated Cross Site Scripting (XSS) in Qode Music <= 2.1.8.2 versions.
-
High 7.1
WordPress Jotform – AI Chatbot plugin <= 3.8.2 - Cross Site Scripting (XSS) vulnerability
Unauthenticated Cross Site Scripting (XSS) in Jotform – AI Chatbot <= 3.8.2 versions.
-
High 7.1
WordPress Additional Order Filters for WooCommerce plugin <= 1.24 - Cross Site Scripting (XSS) vulnerability
Unauthenticated Cross Site Scripting (XSS) in Additional Order Filters for WooCommerce <= 1.24 versions.
-
High 7.1
WordPress WP File Download plugin <= 6.3.6 - Cross Site Scripting (XSS) vulnerability
Unauthenticated Cross Site Scripting (XSS) in WP File Download <= 6.3.6 versions.
-
High 7.1
WordPress Martfury - WooCommerce Marketplace WordPress theme theme <= 3.3.9 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in drfuri Martfury - WooCommerce Marketplace WordPress Theme martfury allows Reflected XSS.This issue affects Martfury - WooCommerce Marketplace WordPress Theme…
-
High 7.1
WordPress ThemeStek Extras for LabtechCO Theme plugin <= 8.4 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in themeStek ThemeStek Extras for LabtechCO Theme themestek-labtechco-extras allows Reflected XSS.This issue affects ThemeStek Extras for LabtechCO Theme: from …
-
High 7.1
WordPress WPAdverts plugin <= 2.3.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Greg Winiarski WPAdverts wpadverts allows Reflected XSS.This issue affects WPAdverts: from n/a through 2.3.4.
-
High 7.1
WordPress WPAdverts plugin <= 2.3.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Greg Winiarski WPAdverts wpadverts allows Stored XSS.This issue affects WPAdverts: from n/a through 2.3.4.
-
High 7.1
WordPress Forminator plugin <= 1.57.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPMU DEV Forminator forminator allows Stored XSS.This issue affects Forminator: from n/a through 1.57.3.
-
High 7.2
HivePress <= 1.7.31 - Unauthenticated Stored Cross-Site Scripting via Custom User Attribute Value via Registration Form
The HivePress – Business Directory, Listings & Classified Ads Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '<custom user attribute field name, e.g. profile_test>' parameter in all versions up to, and including, 1.7.31 due t…
-
High 7.1
WordPress Zeinet theme <= 1.0.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bracketweb Zeinet zeinet allows Reflected XSS.This issue affects Zeinet: from n/a through 1.0.0.
-
High 7.2
WPAdverts <= 2.3.4 - Unauthenticated Stored Cross-Site Scripting via 'adverts_location' Parameter
The WPAdverts – Classifieds Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'adverts_location' parameter in all versions up to, and including, 2.3.4 due to insufficient input sanitization and output escaping. This makes it pos…
-
High 7.2
WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) <= 44.1 - Unauthenticated Stored Cross-Site Scripting via 'id_token' Parameter (iss / unique_name JWT claims)
The WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id_token' parameter in all versions up to, and including, 44.1 due to insufficient input sanitization and outpu…
-
High 7.2
Molongui Authorship <= 5.2.12 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment href Attribute
The Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'comment (href attribute inside comment content)' parameter in all versions up to, and includi…
-
High 7.2
FunnelKit <= 3.16.0.5 - Unauthenticated Stored Cross-Site Scripting via Order Fields (shipping/billing)
The FunnelKit – Funnel Builder for WooCommerce Checkout plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'shipping_first_name' parameter in all versions up to, and including, 3.16.0.5 due to insufficient input sanitization and output …
-
High 7.2
WP Photo Album Plus <= 9.3.03.002 - Unauthenticated Stored Cross-Site Scripting via REQUEST_URI Session History
The WP Photo Album Plus plugin for WordPress is vulnerable to Stored Cross-Site Scripting via REQUEST_URI Session History in all versions up to, and including, 9.3.03.002 due to insufficient input sanitization and output escaping. This makes it possible for u…
-
High 7.2
WP Meteor Website Speed Optimization Addon <= 3.4.18 - Unauthenticated Stored Cross-Site Scripting via Comment Author Name
The WP Meteor Website Speed Optimization Addon plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Author Name in all versions up to, and including, 3.4.18 due to insufficient input sanitization and output escaping. This makes it pos…
-
High 7.2
10Web Booster <= 2.34.8 - Unauthenticated Stored Cross-Site Scripting via Comment Author Name
The 10Web Booster – Website speed optimization, Cache & Page Speed optimizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'author' parameter in all versions up to, and including, 2.34.8 due to insufficient input sanitization and o…
-
High 7.2
LazyLoad Plugin <= 2.4.0 - Unauthenticated Stored Cross-Site Scripting via Comment Content
The LazyLoad Plugin – Lazy Load Images, Videos, and Iframes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment_content (rendered inline into the page HTML)' parameter in all versions up to, and including, 2.4.0 due to insuffici…
-
High 7.2
Photo Reviews for WooCommerce <= 1.2.30 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'wcpr_image_upload_id' Parameter
The Photo Reviews for WooCommerce plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'wcpr_image_upload_id' parameter in all versions up to, and including, 1.2.30 due to insufficient input sanitization and output escaping. Thi…
-
High 7.2
VikBooking Hotel Booking Engine & PMS <= 1.8.15 - Unauthenticated Stored Cross-Site Scripting via 'attachments[name]' Parameter
The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'attachments[name]' Parameter in all versions up to, and including, 1.8.15 due to insufficient input sanitization and output escaping. This makes i…
-
High 7.2
Post Grid Gutenberg Blocks <= 5.1.0 - Unauthenticated Stored Cross-Site Scripting via display_name User Field
The Post Grid Gutenberg Blocks – PostX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via display_name User Field in all versions up to, and including, 5.1.0 due to insufficient input sanitization and output escaping. This makes it possible…
-
High 7.2
Quiz and Survey Master (QSM) <= 11.2.6 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'qsm_hidden_questions' Parameter
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'qsm_hidden_questions' parameter in all versions up to, and including, 11.2.6 due to insufficient input sanitizati…
-
High 8.8
LTL Freight Quotes – Old Dominion Edition < 4.2.19 - Unauthenticated Stored XSS via Shipping Rules
The LTL Freight Quotes WordPress plugin before 4.2.19 does not sanitise and escape values submitted through an unauthenticated endpoint before storing them and outputting them back in an administrative page, leading to Stored XSS which will execute in the ses…
-
High 7.2
Easy Digital Downloads <= 3.6.9 - Unauthenticated Stored Cross-Site Scripting via PayPal IPN Parameters
The Easy Digital Downloads – eCommerce Payments and Subscriptions made easy plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PayPal IPN Parameters in all versions up to, and including, 3.6.9 due to insufficient input sanitization and outp…
-
High 7.2
Podlove Podcast Publisher <= 4.5.6 - Unauthenticated Stored Cross-Site Scripting via Auphonic Webhook
The Podlove Podcast Publisher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Auphonic Webhook in all versions up to, and including, 4.5.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthentic…
-
High 7.2
Presto Player <= 4.5.1 - Unauthenticated Stored Cross-Site Scripting via Comment Content via <presto-player> Tag
The Presto Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via <presto-player> Tag in all versions up to, and including, 4.5.1 due to insufficient input sanitization and output escaping. This makes it possible for …
-
High 7.2
Real Estate Manager <= 7.3 - Unauthenticated Stored Cross-Site Scripting via 'first_name' Parameter
The Real Estate Manager – Property Listing and Agent Management plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'first_name' parameter in all versions up to, and including, 7.3 due to insufficient input sanitization and output escapi…
-
High 7.6
@tinacms/web-components: `tina-markdown` writes rich-text link URLs into `href` without scheme validation, allowing stored XSS
Tina is a headless content management system. Prior to 0.2.1, the tina-markdown element in packages/@tinacms/web-components/src/tina-markdown.js assigns a rich-text node.url value directly to an anchor href without validating the URL scheme. A content author …
-
High 7.5
AstronRPA through 1.1.6 RCE via Smart-Component Chat XSS and IPC Bridge
AstronRPA through 1.1.6 contains a cross-site scripting vulnerability in the desktop client's smart-component chat that allows remote attackers to execute OS commands by abusing unsanitized LLM output rendered via v-html. Attackers can embed prompt-injection …
-
High 7.1
WordPress Pond theme <= 2.6.1 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in SpabRice Pond pond allows Reflected XSS.This issue affects Pond: from n/a through 2.6.1.
-
High 7.1
WordPress Education Center theme <= 3.6.12 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeREX Education Center education allows Reflected XSS.This issue affects Education Center: from n/a through 3.6.12.
-
High 7.1
WordPress Ogency theme <= 1.0.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bracketweb Ogency ogency allows Reflected XSS.This issue affects Ogency: from n/a through 1.0.0.
-
High 7.1
WordPress Treck theme <= 1.0.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bracketweb Treck treck allows Reflected XSS.This issue affects Treck: from n/a through 1.0.0.
-
High 7.1
WordPress Voldor theme <= 1.0.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bracketweb Voldor voldor allows Reflected XSS.This issue affects Voldor: from n/a through 1.0.0.
-
High 7.1
WordPress Whistle - Sports Club theme <= 4.2 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Designthemes Whistle - Sports Club whistle-sports-club allows Reflected XSS.This issue affects Whistle - Sports Club: from n/a through 4.2.