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
935 results · Clear filters · Feed
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Medium 5.1CVE-2025-53533 Public exploit
Pi-hole Admin Interface vulnerable to cross-site scripting via malformed URL path on 404 error page
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level advertisement and internet tracker blocking application. Pi-hole Admin Interface versions 6.2.1 and earlier are vulnerable to reflected cross-site scripting (XSS) via a malformed…
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Medium 6.1CVE-2025-61456 Public exploit
A Cross-Site Scripting (XSS) vulnerability exists in Bhabishya-123 E-commerce 1.0, specifically within the index endpoi…
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Medium 6.1CVE-2025-61454 Public exploit
A Cross-Site Scripting (XSS) vulnerability exists in Bhabishya-123 E-commerce 1.0, specifically within the search endpo…
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Medium 4.4CVE-2025-11926 Public exploit
Related Posts Lite <= 1.12 - Authenticated (Admin+) Stored Cross-Site Scripting
The Related Posts Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attacke…
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Medium 6.1CVE-2025-60374 Public exploit
Stored Cross-Site Scripting (XSS) in Perfex CRM chatbot before 3.3.1 allows attackers to inject arbitrary HTML/JavaScri…
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Medium 4.8CVE-2025-41089 Public exploit
Reflected Cross-Site Scripting (XSS) in CMS
Reflected Cross-Site Scripting (XSS) in Xibo CMS v4.1.2 from Xibo Signage, due to a lack of proper validation of user input. To exploit the vulnerability, the attacker must create a template in the 'Templates' section, then add an element that has the 'Config…
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Medium 5.1CVE-2025-41088 Public exploit
Stored Cross-Site Scripting (XSS) in CMS
Stored Cross-Site Scripting (XSS) in Xibo Signage's Xibo CMS v4.1.2, due to a lack of proper validation of user input. To exploit the vulnerability, the attacker must create a template in the 'Templates' section, then add a text element in the 'Global Element…
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Medium 5.3CVE-2025-11449 Public exploit
Reflected Cross Site Scripting in ServiceNow AI Platform
ServiceNow has addressed a reflected cross-site scripting vulnerability that was identified in the ServiceNow AI Platform. This vulnerability could result in arbitrary code being executed within the browsers of ServiceNow users who click on a specially crafte…
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Medium 6.1CVE-2025-61319 Public exploit
ReNgine thru 2.2.0 is vulnerable to a Stored Cross-Site Scripting (XSS) vulnerability in the Vulnerabilities module. Wh…
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High 8.1CVE-2025-60378 Public exploit
Stored HTML injection in RISE Ultimate Project Manager & CRM allows authenticated users to inject arbitrary HTML into i…
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High 8.3CVE-2025-60880 Public exploit
Bagisto is vulnerable to XSS through Admin Panel's product creation path
An authenticated stored XSS vulnerability exists in the Bagisto 2.3.6 admin panel's product creation path, allowing an attacker to upload a crafted SVG file containing malicious JavaScript code. This vulnerability can be exploited by an authenticated admin us…
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Medium 6.1CVE-2025-61183 Public exploit
VaahCMS is vulnerable to XSS through its Avatar Upload endpoint
Cross Site Scripting in vaahcms v.2.3.1 allows a remote attacker to execute arbitrary code via upload method in the storeAvatar() method of UserBase.php
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Medium 6.1CVE-2025-56243 Public exploit
A Cross-Site Scripting (XSS) vulnerability was found in the register.php page of PuneethReddyHC Event Management System…
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Medium 6.4CVE-2025-9876 Public exploit
Ird Slider <= 1.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
The Ird Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'irdslider' shortcode in all versions up to, and including, 1.0.2 due to insufficient input sanitization and output escaping on user supplied attributes. This ma…
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Medium 5.4CVE-2025-56379 Public exploit
A stored cross-site scripting (XSS) vulnerability in the blog post feature of ERPNEXT v15.67.0 allows attackers to exec…
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Medium 5.4CVE-2025-57389 Public exploit
A reflected cross-site scripting (XSS) vulnerability in the /admin/system/packages endpoint of Luci OpenWRT v18.06.2 al…
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High 8.8CVE-2025-56515 Public exploit
Fiora chat group avatar is vulnerable to XSS via SVG files
File upload vulnerability in Fiora chat application 1.0.0 through user avatar upload functionality. The application fails to validate SVG file content, allowing malicious SVG files with embedded foreignObject elements containing iframe tags and JavaScript eve…
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Medium 4.6CVE-2025-56514 Public exploit
Fiora chat user avatar is vulnerable to XSS via SVG files
Cross Site Scripting (XSS) vulnerability in Fiora chat application 1.0.0 allows executes arbitrary JavaScript when malicious SVG files are rendered by other users.
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High 8.1CVE-2025-57483 Public exploit
A reflected cross-site scripting (XSS) vulnerability in tawk.to chatbox widget v4 allows attackers to execute arbitrary…
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Critical 9.0CVE-2025-56795 Public exploit
Mealie 3.0.1 and earlier is vulnerable to Stored Cross-Site Scripting (XSS) in the recipe creation functionality. Unsan…
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Medium 6.1CVE-2025-56807 Public exploit
A cross-site scripting (XSS) vulnerability in FairSketch RISE Ultimate Project Manager & CRM 3.9.4 allows an administra…
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High 7.2
WP Statistics <= 14.5.4 - Unauthenticated Stored Cross-Site Scripting via User-Agent Header
The WP Statistics – The Most Popular Privacy-Friendly Analytics Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the User-Agent Header in all versions up to, and including, 14.5.4 due to insufficient input sanitization and output e…
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Medium 6.5CVE-2025-57926 Public exploit
WordPress Passster Plugin <= 4.2.18 - Cross Site Scripting (XSS) Vulnerability
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Chill Passster content-protector allows Stored XSS.This issue affects Passster: from n/a through <= 4.2.18.
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High 7.3CVE-2025-55888 Public exploit
Cross-Site Scripting (XSS) vulnerability was discovered in the Ajax transaction manager endpoint of ARD. An attacker ca…
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Medium 6.1CVE-2025-55887 Public exploit
Cross-Site Scripting (XSS) vulnerability was discovered in the meal reservation service ARD. The vulnerability exists i…
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Medium 5.4CVE-2025-52367 Public exploit
Cross Site Scripting vulnerability in PivotX CMS v.3.0.0 RC 3 allows a remote attacker to execute arbitrary code via th…
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Medium 6.4
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Medium 6.1CVE-2025-56762 Public exploit
Paracrawl KeOPs v2 is vulnerable to Cross Site Scripting (XSS) in error.php.
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High 7.3CVE-2025-59424 Public exploit
LinkAce Vulnerable to Stored XSS on the Audit Page
LinkAce is a self-hosted archive to collect website links. Prior to 2.3.1, a Stored Cross-Site Scripting (XSS) vulnerability has been identified on the /system/audit page. The application fails to properly sanitize the username field before it is rendered in …
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Medium 4.3CVE-2025-2404 Public exploit
XSS in Ubit Information Technologies' STOYS
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Ubit Information Technologies STOYS allows Cross-Site Scripting (XSS). This issue affects STOYS: from 2 before 20250916.
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Low 3.5CVE-2025-10370 Public exploit
MiczFlor RPi-Jukebox-RFID userScripts.php cross site scripting
A vulnerability was identified in MiczFlor RPi-Jukebox-RFID up to 2.8.0. This vulnerability affects unknown code of the file /htdocs/userScripts.php. The manipulation of the argument Custom script leads to cross site scripting. The attack is possible to be ca…
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Medium 6.3CVE-2025-55996 Public exploit
Viber Desktop 25.6.0 is vulnerable to HTML Injection via the text parameter of the message compose/forward interface
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Medium 6.1CVE-2025-57520 Public exploit
Decap CMS Cross Site Scripting (XSS) vulnerability
A Cross Site Scripting (XSS) vulnerability exists in Decap CMS thru 3.8.3. Input fields such as body, tags, title, and description are not properly sanitized before being rendered in the content preview pane. This enables an attacker to inject arbitrary JavaS…
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High 8.1CVE-2025-55998 Public exploit
A cross-site scripting (XSS) vulnerability in Smart Search & Filter Shopify and BigCommerce apps allows a remote attack…
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Medium 5.4CVE-2025-57576 Public exploit
PHPGurukul Online Shopping Portal 2.1 is vulnerable to Cross Site Scripting (XSS) in /admin/updateorder.php.
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High 7.6CVE-2025-45805 Public exploit
In phpgurukul Doctor Appointment Management System 1.0, an authenticated doctor user can inject arbitrary JavaScript co…
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Medium 4.3CVE-2025-9728 Public exploit
givanz Vvveb login.tpl cross site scripting
A security vulnerability has been detected in givanz Vvveb 1.0.7.2. This affects an unknown part of the file app/template/user/login.tpl. Such manipulation of the argument Email/Password leads to cross site scripting. The attack can be executed remotely. The …
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Medium 5.4CVE-2025-55580 Public exploit
SolidInvoice version 2.3.7 is vulnerable to a stored cross-site scripting (XSS) issue in the Clients module. An authent…
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Medium 5.4CVE-2025-55579 Public exploit
SolidInvoice version 2.3.7 is vulnerable to a Stored Cross-Site Scripting (XSS) issue in the Tax Rates functionality. T…
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Critical 9.4CVE-2025-34157 Public exploit
Coolify Stored Cross-Site Scripting (XSS) in Project Name Field
Coolify versions prior to v4.0.0-beta.420.6 are vulnerable to a stored cross-site scripting (XSS) attack in the project creation workflow. An authenticated user with low privileges can create a project with a maliciously crafted name containing embedded JavaS…