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Status published
High
CVE-2021-35197
In MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and...
Vulnerability 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).
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://phabricator.wikimedia.org/T280226
- https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce%40lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/
- https://security.gentoo.org/glsa/202107-40
- https://www.debian.org/security/2021/dsa-4979
- https://lists.debian.org/debian-lts-announce/2021/10/msg00003.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/
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Affected Vendor
mediawiki
View all reports →Affected Software
mediawiki, debian linux, fedora
Vulnerable Versions:
0, 1.32.0, 1.36.0, 9.0, 10.0, 11.0, 33, 34, 35
Timeline
Official Publish:
July 2nd, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.