CVE-2023-45367
Last modified
CVE-2023-45367 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An issue was discovered in the CheckUser extension for MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. A user can use a rest.php/checkuser/v0/useragent-clienthints/revision/ URL to store an arbitrary number of rows in cu_useragent_clienthints, leading to a denial of service.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.
Description
An issue was discovered in the CheckUser extension for MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. A user can use a rest.php/checkuser/v0/useragent-clienthints/revision/ URL to store an arbitrary number of rows in cu_useragent_clienthints, leading to a denial of service.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mediawiki | Mediawiki | < 1.35.12 |
| Mediawiki | Mediawiki | >= 1.36.0, < 1.39.5 |
| Mediawiki | Mediawiki | 1.40.0 |
References
- https://phabricator.wikimedia.org/T344923Exploit, Issue Tracking, Vendor Advisory
- https://phabricator.wikimedia.org/T344923Exploit, Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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