CVE-2021-30153

NameCVE-2021-30153
DescriptionAn issue was discovered in the VisualEditor extension in MediaWiki before 1.31.13, and 1.32.x through 1.35.x before 1.35.2. . When using VisualEditor to edit a MediaWiki user page belonging to an existing, but hidden, user, VisualEditor will disclose that the user exists. (It shouldn't because they are hidden.) This is related to ApiVisualEditor.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mediawiki (PTS)buster1:1.31.16-1+deb10u2fixed
buster (security)1:1.31.16-1+deb10u7fixed
bullseye (security), bullseye1:1.35.13-1~deb11u1fixed
bookworm, bookworm (security)1:1.39.5-1~deb12u1fixed
sid, trixie1:1.39.6-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mediawikisourcestretch(not affected)
mediawikisourcebuster(not affected)
mediawikisource(unstable)1:1.35.2-1

Notes

[buster] - mediawiki <not-affected> (Vulnerable code not present)
[stretch] - mediawiki <not-affected> (Vulnerable code not present)
https://phabricator.wikimedia.org/T270453
https://lists.wikimedia.org/pipermail/wikitech-l/2021-April/094418.html

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