CVE-2025-53502

6.5 mediumEPSS 0.2%

Medium (6.5). EPSS 0.2% chance of exploitation in the next 30 days.

Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FeaturedFeeds Extension: 1.39.X, 1.42.X, 1.43.X.

Severity

CVSS 3.1

6.5 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2025-07-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/FeaturedFeeds/+/1149742
https://phabricator.wikimedia.org/T392279

Check your stack JSON