CVE-2021-35197
High
Description
In 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).
SeverityHigh
CVSS7.5
Exploit probability—
Product
Mediawiki
PublishedJul 2, 2021
First seenJul 2, 2021
How to fix
Update
- mediawiki mediawiki1.31.15, 1.35.3, 1.36.1 or later
Vendor advisories
- security.gentoo.org/glsa/202107-40
- debian.org/security/2021/dsa-4979
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mediawiki mediawiki | v < 1.31.15, 1.32.0 ≤ v < 1.35.3, 1.36.0 ≤ v < 1.36.1 | 1.31.15, 1.35.3, 1.36.1 |
| debian debian_linux | 9.0, 10.0, 11.0 | — |
| fedoraproject fedora | 33, 34, 35 | — |
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