CVEvulnerability

CVE-2023-45367

6.5 MEDIUM Published 2023-10-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-10-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Affected configurations

• mediawiki mediawiki (< 1.35.12) • mediawiki mediawiki (>= 1.36.0 < 1.39.5) • mediawiki mediawiki 1.40.0

References