CVE-2021-44856

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. A title blocked by AbuseFilter can be created via Special:ChangeContentModel due to the mishandling of the EditFilterMergedContent hook return value.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
mitreCNA
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CVEADP
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CISA-ADPADP
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 35%
VendorProductVersion
mediawikimediawiki
𝑥
< 1.35.5
mediawikimediawiki
1.36.0 ≤
𝑥
< 1.36.3
mediawikimediawiki
1.37.0
mediawikimediawiki
1.37.0:rc0
mediawikimediawiki
1.37.0:rc1
mediawikimediawiki
1.37.0:rc2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mediawiki
bullseye
1:1.35.13-1+deb11u2
fixed
stretch
postponed
bullseye (security)
1:1.35.13-1+deb11u3
fixed
bookworm
1:1.39.7-1~deb12u1
fixed
bookworm (security)
1:1.39.10-1~deb12u1
fixed
sid
1:1.39.10-1
fixed
trixie
1:1.39.10-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mediawiki
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
ignored
hirsute
ignored
focal
needs-triage
bionic
needs-triage
xenial
ignored
trusty
ignored
Common Weakness Enumeration
References
https://phabricator.wikimedia.org/T271037
https://security.gentoo.org/glsa/202305-24
https://phabricator.wikimedia.org/T271037
https://security.gentoo.org/glsa/202305-24