CVE-2025-53502: wikimedia foundation mediawiki - featuredfeeds extension Improper Input Validation
CVSS: 6.5v3.1MediumDeferred
Published 03-07-2025Last modified 10-07-2025
Vulnerability summary
CVE-2025-53502 is a medium (CVSS 6.5) Improper Input Validation vulnerability in wikimedia foundation mediawiki - featuredfeeds extension. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.6% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.24%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 03-07-2025PublishedVulnerability first disclosed.
- 10-07-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NSourcesAll 2 agree
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
+0.03 pp
From 0.21% on 21-09-2026
21-09-202621-10-2026
EPSS score0.24%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Wikimedia foundation1 product
- mediawiki - featuredfeeds extension≥ 1.39.0, < 1.40.0 | ≥ 1.42.0, < 1.43.0 | ≥ 1.43.0, < 1.44.0
1 vendor · 1 product