Auth bypass in Wikimedia Foundation MediaWiki - Securepoll Extension
CVE-2025-53485
SetTranslationHandler.php does not validate that the user is an election admin, allowing any (even unauthenticated) user to change election-related translation text. While partially broken in newer MediaWiki versions, the check is still missing. This issue affects Mediawiki - SecurePoll extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
Vulnerability class: Broken Access Control
EPSS: 0.003 (16.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Wikimedia Foundation Mediawiki - Securepoll Extension — versions 1.39.x, 1.42.x, 1.43.x
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-53485?
- CVE-2025-53485 is a high-severity vulnerability in Wikimedia Foundation MediaWiki - Securepoll Extension, classified under Missing Authorization. CVSS score: 7.5/10. Published 2025-07-04.
- How severe is CVE-2025-53485?
- High severity. CVSS v3 base score is 7.5 out of 10.