CVE-2021-35197

NameCVE-2021-35197
DescriptionIn MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and 1.36.x before 1.36.1, bots have certain unintended API access. When a bot account has a "sitewide block" applied, it is able to still "purge" pages through the MediaWiki Action API (which a "sitewide block" should have prevented).
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mediawiki (PTS)stretch1:1.27.7-1~deb9u3vulnerable
stretch (security)1:1.27.7-1~deb9u9vulnerable
buster, buster (security)1:1.31.14-1~deb10u1vulnerable
bullseye, sid1:1.35.2-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mediawikisource(unstable)(unfixed)

Notes

[bullseye] - mediawiki <postponed> (Minor issue, wait until next 1.35.x release)
[buster] - mediawiki <postponed> (Minor issue, wait until next 1.31.x release)
[stretch] - mediawiki <postponed> (Minor issue, include in next update)
https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/
https://phabricator.wikimedia.org/T280226

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