Medium severity · published Jul 3, 2025
CVE-2025-53502
HTML injection in FeaturedFeeds
6.5
CVSS
0.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MF
Mediawiki - FeaturedFeeds Extension · Wikimedia Foundation
1.39.x; 1.42.x; 1.43.x · source: vendor
Affected product
MF
Mediawiki - FeaturedFeeds Extension
Wikimedia Foundation