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 KiviCare plugin <= 3.6.16 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Iqonic Design KiviCare kivicare-clinic-management-system allows Reflected XSS.This issue affects KiviCare: from n/a through <= 3.6.16.
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High 7.1
WordPress Addon Jobsearch Chat plugin <= 3.0 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in eyecix Addon Jobsearch Chat addon-jobsearch-chat allows Reflected XSS.This issue affects Addon Jobsearch Chat: from n/a through <= 3.0.
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High 7.1
WordPress Vayvo - Media Streaming & Membership WordPress Theme theme < 6.8 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ProgressionStudios Vayvo vayvo-progression allows Reflected XSS.This issue affects Vayvo: from n/a through < 6.8.
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High 7.1
WordPress WpEvently plugin <= 5.1.4 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in magepeopleteam WpEvently mage-eventpress allows Reflected XSS.This issue affects WpEvently: from n/a through <= 5.1.4.
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High 7.1
WordPress Nooni theme < 1.5.1 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup Nooni nooni allows Reflected XSS.This issue affects Nooni: from n/a through < 1.5.1.
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High 7.1
WordPress Yobazar theme < 1.6.7 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup Yobazar yobazar allows Reflected XSS.This issue affects Yobazar: from n/a through < 1.6.7.
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High 7.1
WordPress Reebox theme < 1.4.8 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup Reebox reebox allows Reflected XSS.This issue affects Reebox: from n/a through < 1.4.8.
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High 7.1
WordPress WP REST Cache plugin <= 2026.1.0 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Acato WP REST Cache wp-rest-cache allows Stored XSS.This issue affects WP REST Cache: from n/a through <= 2026.1.0.
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High 7.1
WordPress Miti theme < 1.5.3 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup Miti miti allows Reflected XSS.This issue affects Miti: from n/a through < 1.5.3.
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High 7.1
WordPress MyDecor theme < 1.5.9 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup MyDecor mydecor allows Reflected XSS.This issue affects MyDecor: from n/a through < 1.5.9.
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High 7.1
WordPress Loobek theme < 1.5.2 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup Loobek loobek allows Reflected XSS.This issue affects Loobek: from n/a through < 1.5.2.
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High 7.1
WordPress MyMedi theme < 1.7.7 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup MyMedi mymedi allows Reflected XSS.This issue affects MyMedi: from n/a through < 1.7.7.
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High 7.1
WordPress Boutique theme < 2.4.6 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in kutethemes Boutique kute-boutique allows Reflected XSS.This issue affects Boutique: from n/a through < 2.4.6.
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High 7.1
WordPress RSFirewall! plugin <= 1.1.45 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in RSJoomla! RSFirewall! rsfirewall allows Stored XSS.This issue affects RSFirewall!: from n/a through <= 1.1.45.
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High 7.1
WordPress FAQ Builder AYS plugin <= 1.8.2 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ays Pro FAQ Builder AYS faq-builder-ays allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects FAQ Builder AYS: from n/a …
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High 7.1
WordPress Jaroti theme < 1.4.8 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in skygroup Jaroti jaroti allows Reflected XSS.This issue affects Jaroti: from n/a through < 1.4.8.
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High 7.1
WordPress XStore Core plugin <= 5.6.4 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in 8theme XStore Core et-core-plugin allows Reflected XSS.This issue affects XStore Core: from n/a through <= 5.6.4.
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High 7.1
WordPress Motta Addons plugin < 1.6.1 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in uixthemes Motta Addons motta-addons allows Reflected XSS.This issue affects Motta Addons: from n/a through < 1.6.1.
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High 7.1
WordPress Phox Hosting plugin <= 2.0.8 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WHMCSdes Phox Hosting phox-host allows Reflected XSS.This issue affects Phox Hosting: from n/a through <= 2.0.8.
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High 7.1
WordPress VikRestaurants plugin <= 1.5.2 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in e4jvikwp VikRestaurants vikrestaurants allows Reflected XSS.This issue affects VikRestaurants: from n/a through <= 1.5.2.
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High 7.1
WordPress NaturaLife Extensions plugin <= 2.1 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in stmcan NaturaLife Extensions naturalife-extensions allows Reflected XSS.This issue affects NaturaLife Extensions: from n/a through <= 2.1.
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High 7.1
WordPress UpSolution Core plugin <= 8.41 - Reflected 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 through <= 8.41.
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High 7.1
WordPress Jobica Core plugin <= 1.4.1 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NooTheme Jobica Core jobica-core allows Reflected XSS.This issue affects Jobica Core: from n/a through <= 1.4.1.
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High 7.1
WordPress Visionary Core plugin <= 1.4.9 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NooTheme Visionary Core noo-visionary-core allows Reflected XSS.This issue affects Visionary Core: from n/a through <= 1.4.9.
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High 7.1
WordPress Organici Library plugin <= 2.1.2 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NooTheme Organici Library noo-organici-library allows Reflected XSS.This issue affects Organici Library: from n/a through <= 2.1.2.
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High 7.1
WordPress CitiLights theme <= 3.7.1 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NooTheme CitiLights noo-citilights allows Reflected XSS.This issue affects CitiLights: from n/a through <= 3.7.1.
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High 7.1
WordPress Car Dealer theme <= 1.6.7 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeMakers Car Dealer cardealer allows Reflected XSS.This issue affects Car Dealer: from n/a through <= 1.6.7.
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High 7.1
WordPress Golo theme < 1.7.5 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in uxper Golo golo allows Reflected XSS.This issue affects Golo: from n/a through < 1.7.5.
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High 7.1
WordPress Gyan Elements plugin <= 2.2.1 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Softwebmedia Gyan Elements gyan-elements allows Reflected XSS.This issue affects Gyan Elements: from n/a through <= 2.2.1.
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High 7.1
WordPress WP Telegram Widget and Join Link plugin <= 2.2.13 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Socio WP Telegram Widget and Join Link wptelegram-widget allows Reflected XSS.This issue affects WP Telegram Widget and Join Link: from n/a through <= 2.2…
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High 7.1
WordPress Legacy Admin plugin <= 9.5 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in themepassion Legacy Admin legacy-admin allows Reflected XSS.This issue affects Legacy Admin: from n/a through <= 9.5.
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High 7.1
WordPress Ultra WordPress Admin plugin <= 11.7 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in themepassion Ultra WordPress Admin ultra-admin allows Reflected XSS.This issue affects Ultra WordPress Admin: from n/a through <= 11.7.
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High 7.1
WordPress Handmade Framework plugin <= 3.9 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in G5Theme Handmade Framework handmade-framework allows Reflected XSS.This issue affects Handmade Framework: from n/a through <= 3.9.
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High 7.1
WordPress My auctions allegro plugin <= 3.6.35 - Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wphocus My auctions allegro my-auctions-allegro-free-edition allows Reflected XSS.This issue affects My auctions allegro: from n/a through <= 3.6.35.
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High 7.1
WordPress Zorka theme <= 1.5.7 - Reflected Cross Site Scripting (XSS) vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in G5Theme Zorka zorka allows Reflected XSS.This issue affects Zorka: from n/a through <= 1.5.7.
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High 7.6
Kiteworks Secure Data Forms vulnerable to Cross-site Scripting
Kiteworks is a private data network (PDN). In Kiteworks Secure Data Forms prior to version 9.2.1, an authenticated attacker could exploit an Improper Neutralization of Input During Web Page Generation as Stored XSS when modifying forms. Upgrade Kiteworks to v…
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High 8.5
Ericsson Indoor Connect 8855 - Improper Neutralization of Input During Web Page Generation Vulnerability
Ericsson Indoor Connect 8855 versions prior to 2025.Q3 contains a Cross-Site Scripting (XSS) vulnerability which, if exploited, can lead to unauthorized disclosure and modification of certain information.
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High 8.2
Cross-Site Scripting vulnerability in Hitachi Infrastructure Analytics Advisor and Hitachi Ops Center Analyzer
Cross-Site Scripting vulnerability in Hitachi Infrastructure Analytics Advisor (Analytics probe component), Hitachi Ops Center Analyzer.This issue affects Hitachi Infrastructure Analytics Advisor:; Hitachi Ops Center Analyzer: from 10.0.0-00 before 11.0.5-00.
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High 8.2CVE-2026-33331 Public exploit
oRPC: Stored XSS in OpenAPI Reference Plugin via unescaped JSON.stringify
oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to version 1.13.9, a stored cross-site scripting (XSS) vulnerability exists in the OpenAPI documentation generation of orpc. If an attacker can control …
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High 8.2
Connect CMS has Stored Cross-site Scripting (XSS) in the File Field of its Form Plugin
Connect-CMS is a content management system. In versions on the 1.x series up to and including 1.41.0 and versions on the 2.x series up to and including 2.41.0, a Stored Cross-site Scripting (XSS) issue exists in the file field of the Form Plugin. Versions 1.4…