CVE-2025-53484

9.8 criticalEPSS 0.5%

Critical (9.8). EPSS 0.5% chance of exploitation in the next 30 days.

User-controlled inputs are improperly escaped in: * VotePage.php (poll option input) * ResultPage::getPagesTab() and getErrorsTab() (user-controllable page names) This allows attackers to inject JavaScript and compromise user sessions under certain conditions. 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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2025-07-04
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://gerrit.wikimedia.org/r/1149655
https://gerrit.wikimedia.org/r/1149669
https://phabricator.wikimedia.org/T392341

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