medium6.5
CVE-2023-45367
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.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mediawiki | Mediawiki | before 1.35.12 from 1.36.0 before 1.39.5 Version 1.40.0 |