CVE-2025-61637
Cross-Site Scripting in MediaWiki Edit and Page Preview Components
Publication date: 2026-02-03
Last updated on: 2026-03-16
Assigner: wikimedia-foundation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mediawiki | mediawiki | to 1.39.14 (exc) |
| mediawiki | mediawiki | From 1.39.15 (inc) to 1.43.4 (exc) |
| mediawiki | mediawiki | From 1.43.5 (inc) to 1.44.1 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a Cross-site Scripting (XSS) issue in Wikimedia Foundation MediaWiki. It occurs due to improper neutralization of input during web page generation, specifically in certain JavaScript files related to page preview and editing. This means that malicious input could be injected and executed in the context of a user's browser.
How can this vulnerability impact me? :
The vulnerability could allow attackers to execute malicious scripts in users' browsers when they view affected pages. This can lead to theft of user credentials, session hijacking, or other malicious actions performed on behalf of the user.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know