Cross-site Scripting Vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension
CVE-2025-53488

6.1MEDIUM

Key Information:

Vendor

Wikimedia Foundation

Status
Mediawiki - Wikihiero Extension
Vendor
CVE Published:
7 July 2025

What is CVE-2025-53488?

A cross-site scripting (XSS) vulnerability exists in the WikiHiero Extension of Wikimedia's Mediawiki framework, allowing attackers to inject malicious scripts. This stored XSS issue affects versions of the extension prior to 1.43.2, which can lead to unauthorized actions being performed on behalf of users or sensitive information being exposed. Proper validation and sanitization of user inputs are essential to mitigate this risk and protect user data.

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Affected Version(s)

Mediawiki - WikiHiero Extension 1.43.x < 1.43.2

References

https://phabricator.wikimedia.org/T396524
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/wik...

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

SomeRandomDeveloper
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