Low severity · published Oct 22, 2025
CVE-2025-62659
The CookieConsent extension does not properly use reserved data attributes, thus introducing potential XSS vectors
2.1
CVSS
0.3%
EPSS
No
On KEV
Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki CookieConsent extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki CookieConsent extension: from v0.1.0 before v2.0.0.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
MediaWiki CookieConsent extension · The Wikimedia Foundation
v0.1.0 before v2.0.0 · source: vendor
Affected product
MC
MediaWiki CookieConsent extension
The Wikimedia Foundation