CVE-2025-61638

EUVD-2025-206633
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation Parsoid. This vulnerability is associated with program files includes/parser/Sanitizer.Php, src/Core/Sanitizer.Php.

This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1; Parsoid: from * before 0.16.6, 0.20.4, 0.21.1.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.8 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
mediawikimediawiki
𝑥
< 1.39.14
mediawikimediawiki
1.39.15 ≤
𝑥
< 1.43.4
mediawikimediawiki
1.43.5 ≤
𝑥
< 1.44.1
wikimediaparsoid
𝑥
< 0.16.6
wikimediaparsoid
0.16.6 <
𝑥
< 0.20.4
wikimediaparsoid
0.20.4 <
𝑥
< 0.21.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mediawiki
bookworm
1:1.39.17-1~deb12u1
fixed
bookworm (security)
1:1.39.17-1~deb12u1
fixed
bullseye
vulnerable
bullseye (security)
1:1.35.13-1+deb11u6
fixed
forky
1:1.43.8+dfsg-1
fixed
sid
1:1.43.8+dfsg-1
fixed
trixie
1:1.43.6+dfsg-1~deb13u1
fixed
trixie (security)
1:1.43.6+dfsg-1~deb13u1
fixed
Common Weakness Enumeration
References
https://phabricator.wikimedia.org/T401099