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
655 results · Clear filters · Feed
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Medium 6.1CVE-2025-65442 Public exploit
DOM-based Cross-Site Scripting (XSS) vulnerability in 201206030 novel V3.5.0 allows remote attackers to execute arbitra…
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Medium 6.1CVE-2025-65270 Public exploit
Reflected cross-site scripting (XSS) vulnerability in ClinCapture EDC 3.0 and 2.2.3, allowing an unauthenticated remote…
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Medium 6.1CVE-2025-65790 Public exploit
A reflected cross-site scripting (XSS) vulnerability exists in FuguHub 8.1 when serving SVG files through the /fs/ file…
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Medium 5.1CVE-2025-67730 Public exploit
Frappe authenticated users can execute XSS through form description fields
Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Versions prior to 2.42.0 allow authenticated users to add malicious HTML and JavaScript through description fields in the Job, Course and Batch forms. This …
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Medium 6.1CVE-2025-55816 Public exploit
HotelDruid v3.0.7 and before is vulnerable to Cross Site Scripting (XSS) in the /modifica_app.php file.
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Medium 6.1CVE-2025-65754 Public exploit
Algernon Cross-Site Scripting vulnerability
Cross Site Scripting vulnerability in Algernon v1.17.4 allows attackers to execute arbitrary code via injecting a crafted payload into a filename.
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Medium 6.1CVE-2025-66470 Public exploit
NiceGUI Stored/Reflected XSS in ui.interactive_image via unsanitized SVG content
NiceGUI is a Python-based UI framework. Versions 3.3.1 and below are subject to a XSS vulnerability through the ui.interactive_image component of NiceGUI. The component renders SVG content using Vue's v-html directive without any sanitization. This allows att…
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Medium 5.4CVE-2025-65300 Public exploit
A stored Cross-Site Scripting (XSS) vulnerability exists in the Coohom SaaS Platform feVersion=1760060603897 (2025-10-2…
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Medium 6.4CVE-2025-12163 Public exploit
Omnipress <= 1.6.5 - Authenticated (Author+) Stored Cross-Site Scripting
The Omnipress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 1.6.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, wi…
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Medium 6.1CVE-2025-63499 Public exploit
Alinto Sogo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the theme parameter.
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Medium 6.4CVE-2025-13401 Public exploit
Autoptimize <= 3.1.13 - Authenticated (Contributor+) Stored Cross-Site Scripting
The Autoptimize plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the LCP Image to preload metabox in all versions up to, and including, 3.1.13 due to insufficient input sanitization and output escaping on user-supplied image attributes in…
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Medium 5.4CVE-2025-65676 Public exploit
Stored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arb…
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Medium 5.4CVE-2025-65675 Public exploit
Stored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arb…
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Medium 6.1CVE-2025-63735 Public exploit
A reflected Cross site scripting (XSS) vulnerability in Ruckus Unleashed 200.13.6.1.319 via the name parameter to the t…
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Medium 6.1CVE-2025-63498 Public exploit
alinto SOGo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the "userName" parameter.
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Medium 6.1CVE-2025-64027 Public exploit
Snipe-IT has Cross-site Scripting vulnerability in CSV import workflow
Snipe-IT v8.3.4 (build 20218) contains a reflected cross-site scripting (XSS) vulnerability in the CSV Import workflow. When an invalid CSV file is uploaded, the application returns a progress_message value that is rendered as raw HTML in the admin interface.…
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Medium 6.1CVE-2025-63848 Public exploit
Stored cross site scripting (xss) vulnerability in SWISH prolog thru 2.2.0 allowing attackers to execute arbitrary code…
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Medium 6.8CVE-2025-63892 Public exploit
A vulnerability was determined in SourceCodester Student Grades Management System 1.0. Affected is the function create_…
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Medium 6.1CVE-2025-56526 Public exploit
Cross site scripting (XSS) vulnerability in Kotaemon 0.11.0 allowing attackers to execute arbitrary code via a crafted …
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Medium 6.1CVE-2025-63708 Public exploit
Cross-Site Scripting (XSS) vulnerability exists in SourceCodester AI Font Matcher (nid=18425, 2025-10-10) that allows r…
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Medium 6.1CVE-2025-63830 Public exploit
CKFinder 1.4.3 is vulnerable to Cross Site Scripting (XSS) in the File Upload function. An attacker can upload a crafte…
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Medium 6.1CVE-2025-63419 Public exploit
Cross Site Scripting (XSS) vulnerability in CrushFTP 11.3.6_48. The Web-Based Server has a feature where users can shar…
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Medium 5.9
Cross-Site Scripting (XSS)
Cross-Site Scripting (XSS) in NetScaler ADC and NetScaler Gateway when the appliance is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
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Medium 4.1CVE-2025-63420 Public exploit
CrushFTP11 before 11.3.7_57 is vulnerable to stored HTML injection in the CrushFTP Admin Panel (Reports / "Who Created …
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Medium 5.4CVE-2025-50363 Public exploit
Phpgurukul Maid Hiring Management System 1.0 is vulnerable to Cross Site Scripting (XSS) in /maid-hiring.php va the nam…
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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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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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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.