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 8.8
Combodo iTop has XSS vulnerability in /pages/ajax.render.php
Combodo iTop is a web based IT service management tool. Versions prior to 2.7.13 and 3.2.2 are vulnerable to cross-site scripting when a dashboard is edited via an AJAX call. Versions 2.7.13 and 3.2.2 protect rendered HTML content.
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High 8.7CVE-2025-64495 Public exploit
Open WebUI vulnerable to Stored DOM XSS via prompts when 'Insert Prompt as Rich Text' is enabled resulting in ATO/RCE
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. In versions 0.6.34 and below, the functionality that inserts custom prompts into the chat window is vulnerable to DOM XSS when 'Insert Prompt as Rich Text' is e…
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High 7.1
HumHub is vulnerable to XSS through its Meta Search component
HumHub is an Open Source Enterprise Social Network. Versions below 1.17.4 have a XSS vulnerability in the Meta-Search feature which allows malicious input to be executed in search previews. This issue is fixed in version 1.17.4.
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High 7.2
Notification Center
A cross-site scripting (XSS) vulnerability has been reported to affect Notification Center. If a remote attacker gains an administrator account, they can then exploit the vulnerability to bypass security mechanisms or read application data. We have already fi…
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High 7.2
ClipBucket v5: Stored XSS Vulnerability in Manage Playlists
ClipBucket v5 is an open source video sharing platform. In versions 5.5.2-#146 and below, the Manage Playlists feature is vulnerable to stored Cross-site Scripting (XSS),specifically in the Playlist Name field. An authenticated low-privileged user can create …
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High 7.2
ClipBucket v5's Manage Photo Feature is Vulnerable to Stored XSS Attack via Photo Title
ClipBucket v5 is an open source video sharing platform. In versions 5.5.2-#146 and below, the Manage Photos feature is vulnerable to stored Cross-site Scripting (XSS). An authenticated regular user can upload a photo with a malicious Photo Title containing HT…
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High 8.8
Heimdall Data Database Proxy Cross-Site Scripting Remote Code Execution Vulnerability
Heimdall Data Database Proxy Cross-Site Scripting Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Heimdall Data Database Proxy. Minimal user interaction is required to expl…
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High 7.1
WordPress Import from YML plugin <= 3.1.17 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in icopydoc Import from YML import-from-yml allows Reflected XSS.This issue affects Import from YML: from n/a through <= 3.1.17.
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High 7.1
WordPress Grand Conference Theme Custom Post Type plugin < 2.6.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeGoods Grand Conference Theme Custom Post Type grandconference-custom-post allows Reflected XSS.This issue affects Grand Conference Theme Custom Post Typ…
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High 7.1
WordPress Easy Social Share Buttons plugin < 10.7.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in appscreo Easy Social Share Buttons easy-social-share-buttons3 allows Reflected XSS.This issue affects Easy Social Share Buttons: from n/a through < 10.7.1.
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High 7.1
WordPress Booster for WooCommerce plugin <= 7.2.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Pluggabl Booster for WooCommerce woocommerce-jetpack allows Reflected XSS.This issue affects Booster for WooCommerce: from n/a through <= 7.2.5.
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High 7.1
WordPress Simple Payment plugin <= 2.4.6 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ido Kobelkowsky Simple Payment simple-payment.This issue affects Simple Payment: from n/a through <= 2.4.6.
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High 7.1
WordPress WPMobile.App plugin <= 11.71 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Amauri WPMobile.App wpappninja.This issue affects WPMobile.App: from n/a through <= 11.71.
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High 7.1
WordPress SureRank plugin <= 1.3.2 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Brainstorm Force SureRank surerank.This issue affects SureRank: from n/a through <= 1.3.2.
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High 7.1
WordPress Houzez Theme - Functionality plugin < 4.2.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in favethemes Houzez Theme - Functionality houzez-theme-functionality.This issue affects Houzez Theme - Functionality: from n/a through < 4.2.0.
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High 7.1
WordPress TheGem (Elementor) theme <= 5.10.5.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CodexThemes TheGem (Elementor) thegem-elementor.This issue affects TheGem (Elementor): from n/a through <= 5.10.5.1.
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High 7.1
WordPress YOP Poll plugin <= 6.5.37 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in YOP YOP Poll yop-poll.This issue affects YOP Poll: from n/a through <= 6.5.37.
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High 7.1
WordPress Togo theme < 1.0.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in uxper Togo togo.This issue affects Togo: from n/a through < 1.0.4.
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High 7.1
WordPress tagDiv Composer plugin <= 5.4.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in tagDiv tagDiv Composer td-composer.This issue affects tagDiv Composer: from n/a through <= 5.4.1.
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High 7.1
WordPress GoStore theme < 1.6.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup GoStore gostore allows Reflected XSS.This issue affects GoStore: from n/a through < 1.6.4.
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High 7.1
WordPress Enzy theme < 1.6.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup Enzy enzy allows Reflected XSS.This issue affects Enzy: from n/a through < 1.6.4.
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High 7.1
WordPress Institutions Directory Plugin <= 1.3.3 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in e-plugins Institutions Directory institutions-directory allows Reflected XSS.This issue affects Institutions Directory: from n/a through <= 1.3.3.
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High 7.1
WordPress Jobmonster theme <= 4.7.8 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NooTheme Jobmonster noo-jobmonster allows Reflected XSS.This issue affects Jobmonster: from n/a through <= 4.7.8.
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High 7.1
WordPress WooTour plugin <= 3.6.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ex-Themes WooTour woo-tour allows Reflected XSS.This issue affects WooTour: from n/a through <= 3.6.3.
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High 7.1
WordPress Resca theme <= 3.0.2 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThimPress Resca resca allows Reflected XSS.This issue affects Resca: from n/a through <= 3.0.2.
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High 7.1
WordPress Yogi - Health Beauty & Yoga theme <= 2.9.2 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NooTheme Yogi - Health Beauty & Yoga noo-yogi allows Reflected XSS.This issue affects Yogi - Health Beauty & Yoga: from n/a through <= 2.9.2.
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High 7.1
WordPress WeMusic theme <= 1.9.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NooTheme WeMusic noo-wemusic allows Reflected XSS.This issue affects WeMusic: from n/a through <= 1.9.1.
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High 7.1
WordPress Doliconnect Plugin <= 9.3.2 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ptibogxiv Doliconnect doliconnect allows Reflected XSS.This issue affects Doliconnect: from n/a through <= 9.3.2.
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High 7.1
WordPress Epic Review Plugin <= 1.0.2 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in jegtheme Epic Review epic-review allows Reflected XSS.This issue affects Epic Review: from n/a through <= 1.0.2.
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High 7.1
WordPress Kalium Theme <= 3.18.3 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Laborator Kalium kalium allows Reflected XSS.This issue affects Kalium: from n/a through <= 3.18.3.
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High 7.1
WordPress Gutenify Plugin <= 1.5.7 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CodeYatri Gutenify gutenify allows Stored XSS.This issue affects Gutenify: from n/a through <= 1.5.7.
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High 7.1
WordPress Dropify plugin <= 4.7.2 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Jhainey Milevis Dropify wc-dropi-integration allows Reflected XSS.This issue affects Dropify: from n/a through <= 4.7.2.
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High 7.1
WordPress WP Logo Changer Plugin <= 1.2 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Afzal Multani WP Logo Changer am-login-logo allows Stored XSS.This issue affects WP Logo Changer: from n/a through <= 1.2.
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High 7.1
WordPress User Registration Aide Plugin <= 1.5.3.8 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in bnovotny User Registration Aide user-registration-aide allows Reflected XSS.This issue affects User Registration Aide: from n/a through <= 1.5.3.8.
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High 7.1
WordPress flexoslider plugin <= 1.0004 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in marielav flexoslider flexoslider allows Reflected XSS.This issue affects flexoslider: from n/a through <= 1.0004.
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High 7.1
WordPress Penci Bookmark & Follow plugin < 2.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in PenciDesign Penci Bookmark & Follow penci-bookmark-follow allows Reflected XSS.This issue affects Penci Bookmark & Follow: from n/a through < 2.4.
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High 7.1
WordPress Booking and Rental Manager plugin <= 2.5.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in magepeopleteam Booking and Rental Manager booking-and-rental-manager-for-woocommerce allows Reflected XSS.This issue affects Booking and Rental Manager: from…
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High 7.1
WordPress Range Slider Addon for Gravity Forms plugin <= 1.1.6 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in PluginsCafe Range Slider Addon for Gravity Forms range-slider-addon-for-gravity-forms allows Reflected XSS.This issue affects Range Slider Addon for Gravity …
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High 7.1
WordPress Cookie Notice & Consent plugin <= 1.6.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in christophrado Cookie Notice & Consent cookie-notice-consent allows Stored XSS.This issue affects Cookie Notice & Consent: from n/a through <= 1.6.4.
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High 7.1
WordPress replyMail plugin <= 1.2.0 - Cross Site Request Forgery (CSRF) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in bingu replyMail replymail allows Stored XSS.This issue affects replyMail: from n/a through <= 1.2.0.