MediaWiki SecurePoll Extension Vulnerability Exposes Election Admin Privileges
CVE-2025-53485

7.5HIGH

Key Information:

Vendor

Wikimedia Foundation

Status
Mediawiki - Securepoll Extension
Vendor
CVE Published:
4 July 2025

What is CVE-2025-53485?

The MediaWiki SecurePoll extension features a significant vulnerability within its SetTranslationHandler.php component. This flaw permits unauthorized users, including those who are unauthenticated, to modify election-related translation text due to a lack of validation for election admin status. Although updates in newer MediaWiki versions have addressed some aspects of this issue, critical checks are still absent, leaving the system vulnerable to potential manipulation. This can lead to unauthorized changes affecting the integrity of election processes.

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Deploy the Patch

Affected Version(s)

Mediawiki - SecurePoll extension 1.39.x < 1.39.13

Mediawiki - SecurePoll extension 1.42.x < 1.42.7

Mediawiki - SecurePoll extension 1.43.x < 1.43.2

References

https://phabricator.wikimedia.org/T392341
https://gerrit.wikimedia.org/r/149668

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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