VDB
CVE-2021-35197
CVE-2021-35197
PUBLISHED
CVSS 7.5 HIGH
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).
EPSS 1.94% · 80.0th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Score
1.94%
80.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:22.04:LTS | mediawiki | 1:1.35.5-1ubuntu3, 1:1.35.5-1ubuntu1, 1:1.35.4-1 |
| Ubuntu:25.10 | mediawiki | 1:1.43.3+dfsg-1, 0, 1:1.43.1+dfsg-1 |
| Ubuntu:20.04:LTS | mediawiki | 1:1.31.6-1, 1:1.31.2-1ubuntu1, 1:1.31.5-1 |
| Ubuntu:18.04:LTS | mediawiki | 1:1.27.4-3, 0, 1:1.27.3-1 |
| Ubuntu:24.04:LTS | mediawiki | 1:1.39.7-1, 1:1.39.6-1, 1:1.39.5-1 |
Timeline
- Jul 2, 2021 CVE Published
- Jul 3, 2021 EPSS Score
- Sep 2, 2021 EPSS Score
- Oct 10, 2021 EPSS Score
- Oct 11, 2021 EPSS Score
- Jan 1, 2022 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 2, 2022 EPSS Score
- Nov 1, 2022 EPSS Score
References
- https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/ third-party-advisory
- https://phabricator.wikimedia.org/T280226 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-35197 third-party-advisory
- https://ubuntu.com/security/CVE-2021-35197 advisory