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
6,245 results · Clear filters · Feed
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High 7.1
WordPress AcyMailing SMTP Newsletter plugin <= 11.1.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Datasolution AcyMailing SMTP Newsletter acymailing allows Reflected XSS.This issue affects AcyMailing SMTP Newsletter: from n/a through 11.1.0.
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High 7.1
WordPress WP Associate Post R2 plugin <= 5.0.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Delight Star Inc. WP Associate Post R2 wp-associate-post-r2 allows Reflected XSS.This issue affects WP Associate Post R2: from n/a through 5.0.1.
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High 7.1
WordPress Gloria Admin Panel plugin <= 1.3 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in bkninja Gloria Admin Panel gloria-admin-panel allows Reflected XSS.This issue affects Gloria Admin Panel: from n/a through 1.3.
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High 7.1
WordPress Kubio AI Page Builder plugin <= 2.9.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Extend Themes Kubio AI Page Builder kubio allows Reflected XSS.This issue affects Kubio AI Page Builder: from n/a through 2.9.3.
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High 7.1
WordPress Sassy Social Share plugin <= 3.3.79 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Heateor Support Sassy Social Share sassy-social-share allows Reflected XSS.This issue affects Sassy Social Share: from n/a through 3.3.79.
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High 7.1
WordPress Grand Restaurant theme < 7.0.11 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeGoods Grand Restaurant grandrestaurant allows Reflected XSS.This issue affects Grand Restaurant: from n/a before 7.0.11.
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High 7.1
WordPress Total Donations plugin <= 2.0.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in KlbTheme Total Donations totaldonations allows Stored XSS.This issue affects Total Donations: from n/a through 2.0.5.
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High 7.1
WordPress Simple Payment plugin <= 2.5.4 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in yalla ya! Simple Payment simple-payment allows Reflected XSS.This issue affects Simple Payment: from n/a through 2.5.4.
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High 7.1
WordPress NEX-Forms plugin <= 9.3.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Basix NEX-Forms nex-forms-express-wp-form-builder allows Reflected XSS.This issue affects NEX-Forms: from n/a through 9.3.1.
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High 7.1
WordPress Salon booking system plugin <= 10.31.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Dimitri Grassi Salon booking system salon-booking-system allows Reflected XSS.This issue affects Salon booking system: from n/a through 10.31.5.
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High 7.1
WordPress JetBlog plugin <= 2.4.10 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Crocoblock JetBlog jet-blog allows Reflected XSS.This issue affects JetBlog: from n/a through 2.4.10.
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High 7.1
WordPress Betheme theme <= 28.5.8 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Muffingroup Betheme betheme allows Reflected XSS.This issue affects Betheme: from n/a through 28.5.8.
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High 7.1
WordPress BlockStrap Page Builder - Bootstrap Blocks plugin <= 0.1.58 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Stiofan BlockStrap Page Builder - Bootstrap Blocks blockstrap-page-builder-blocks allows Reflected XSS.This issue affects BlockStrap Page Builder - Bootstrap…
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High 7.1CVE-2026-94641 Public exploit
WordPress UsersWP plugin <= 1.2.73 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Stiofan UsersWP userswp allows Reflected XSS.This issue affects UsersWP: from n/a through 1.2.73.
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High 7.1
WordPress Welcart e-Commerce plugin <= 2.12.3 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Welcart Welcart e-Commerce usc-e-shop allows Reflected XSS.This issue affects Welcart e-Commerce: from n/a through 2.12.3.
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High 7.1
WordPress UpSolution Core plugin < 9.4.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UpSolution UpSolution Core us-core allows Reflected XSS.This issue affects UpSolution Core: from n/a before 9.4.1.
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High 7.1
WordPress Search in Place plugin <= 1.5.5 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in codepeople Search in Place search-in-place allows Reflected XSS.This issue affects Search in Place: from n/a through 1.5.5.
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High 7.1
WordPress Media LIbrary Assistant plugin <= 3.41 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in David Lingren Media LIbrary Assistant media-library-assistant allows Stored XSS.This issue affects Media LIbrary Assistant: from n/a through 3.41.
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High 7.1
WordPress VikBooking Hotel Booking Engine & PMS plugin <= 1.8.14 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in e4jvikwp VikBooking Hotel Booking Engine & PMS vikbooking allows Reflected XSS.This issue affects VikBooking Hotel Booking Engine & PMS: from n/a through 1.8…
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High 7.1
WordPress ShopBuilder – Elementor WooCommerce Builder Addons plugin <= 3.4.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Mamunur Rashid ShopBuilder – Elementor WooCommerce Builder Addons shopbuilder allows Reflected XSS.This issue affects ShopBuilder – Elementor WooCommerce Bui…
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High 7.1
WordPress HUSKY plugin <= 1.4.3.2 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in PluginUs.Net HUSKY woocommerce-products-filter allows Reflected XSS.This issue affects HUSKY: from n/a through 1.4.3.2.
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High 7.1
WordPress FiboSearch plugin <= 1.34.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Damian Góra FiboSearch ajax-search-for-woocommerce allows Reflected XSS.This issue affects FiboSearch: from n/a through 1.34.1.
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High 8.9
Stored Cross-site Scripting (XSS) in Telerik Report Server Web Report Viewers
In Progress® Telerik® Report Server prior to version 12.2.26.1007, a stored cross-site scripting vulnerability in the shared reporting engine allows an authenticated report author to embed javascript: or vbscript: URLs in report navigation actions or HTML tex…
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High 7.2
Ocean Pro Demos <= 1.5.4 and Ocean eComm Treasure Box <= 1.8.0 - Unauthenticated Stored Cross-Site Scripting via 'content' Parameter
The Ocean Pro Demos and Ocean eComm Treasure Box plugins for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter in all versions up to, and including, 1.5.4, and 1.8.0, respectively, due to insufficient authorization, input sani…
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High 8.2
Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Verify Access
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 is vulnerable to cross-site scripting. This vulnerability allows an unauthenticated user to embed arbitrary JavaScript code in the Web UI thus altering the int…
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High 7.1
WordPress aBlocks plugin <= 2.16.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kodezen LLC aBlocks ablocks allows Reflected XSS.This issue affects aBlocks: from n/a through 2.16.0.
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High 7.6
JHipster: Generated Applications Allow Stored XSS via Unrestricted Blob ContentType Opened as Same-Origin Blob
JHipster is a development platform to quickly generate, develop, and deploy modern web applications and microservice architectures. Prior to generator-jhipster 9.4.0 and react-jhipster 1.1.0, generated applications can persist attacker-controlled Blob data an…
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High 7.8
Obsidian Desktop < 1.14.0 RCE via MathJax Safe Filter Bypass
Obsidian Desktop before 1.14.0 contains a filter bypass vulnerability in the bundled MathJax 3.2.2 Safe component that allows attackers to execute arbitrary code by embedding a crafted \href value with a TAB byte in the URL scheme, causing filterURL to produc…
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High 7.8
Obsidian Desktop < 1.14.0 RCE via Slides Plugin Markdown
Obsidian Desktop before 1.14.0 contains a remote code execution vulnerability that allows attackers to craft malicious Markdown notes exploiting insufficient sanitization of the data-background-iframe attribute, which bypasses DOMPurify and is processed by th…
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High 8.0
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in hMailServer
Cross-site scripting in the webmail of Progressive Robot hMailServer 6.3.2 through 6.3.5 allows a remote attacker who can send a user an encrypted message to run script in the webmail's origin with that user's session. When the webmail decrypted an S/MIME mes…
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High 7.5
GPTranslate < 2.34.14 - Unauthenticated Stored XSS via REST API Translation Storage
The GPTranslate WordPress plugin before 2.34.14 does not properly restrict who can store translations, and does not escape them when outputting them in translated pages, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks when server…
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High 7.1
WordPress Disable and Remove Google Fonts | GDPR & DSGVO friendly plugin <= 2.0.2 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Fontsplugin Disable and Remove Google Fonts | GDPR & DSGVO friendly disable-remove-google-fonts allows Reflected XSS. This issue affects Disable and Remove G…
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High 7.1
WordPress Everest Forms plugin <= 3.6.1 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Everest Forms allows Reflected XSS. This issue affects Everest Forms: from n/a through 3.6.1.
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High 7.1
WordPress Unlimited Elements For Elementor plugin <= 2.0.19 - 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) allows Stored XSS. This issue affects Unlimited Elements For Elementor …
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High 7.2
OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy. <= 6.3.10 - Unauthenticated Stored Cross-Site Scripting via 's' Search Parameter in comments-atom Feed
The OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy. plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 's' Search Parameter via comments-atom Feed in all versions up to, and including, 6.3.10 due to insufficient input sanitization a…
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High 7.1
If-So Dynamic Content 1.4.4 - 1.10.1 - Reflected XSS via 'message' Parameter
The If-So Dynamic Content WordPress plugin before 1.10.2 does not validate the URL scheme of a request-supplied value before reflecting it into a link on an admin page, allowing attackers to execute arbitrary JavaScript in the browser of a logged-in user who …
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High 7.1
Magee Shortcodes <= 2.1.1 - Reflected XSS via live_preview and magee_create_shortcode Actions
The Magee Shortcodes WordPress plugin through 2.1.1 does not sanitise and escape user input in some of its AJAX actions, which are available to unauthenticated users, before reflecting it back in the response, leading to Reflected Cross-Site Scripting.
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High 7.2
Kirki – Freeform Page Builder, Website Builder & Customizer <= 6.3.1 - Unauthenticated Stored Cross-Site Scripting via Registration Metadata
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via registration metadata in all versions up to, and including, 6.3.1 This is due to insufficient escaping in `ExceptionalElement…
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High 8.7
Security Advisory 0192
A stored cross-site scripting (XSS) vulnerability may allow an unauthenticated attacker with adjacent-network access to inject malicious content that executes when an authenticated user views affected content. Successful exploitation may allow the attacker to…
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High 8.4
Security Advisory 0192
A stored cross-site scripting (XSS) vulnerability may allow an authenticated, high-privilege administrator to store malicious content in a configuration. The content may execute in another authenticated user's browser when that user views or compares the affe…