CVE-2023-45367 is a denial-of-service vulnerability affecting the CheckUser extension in MediaWiki versions before 1.35.12, 1.39.5, and 1.40.1. An authenticated attacker can exploit a specific URL to store an excessive number of rows in the cu_useragent_clienthints table, leading to a denial of service. Rated as Medium severity (CVSS 6.5), this vulnerability has a low attack complexity and requires user authentication, but can result in high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.35.12CPE matchmatch criteria | cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* | ||
>= 1.36.0, < 1.39.5CPE matchmatch criteria | cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* | ||
1.40.0CPE matchmatch criteria | cpe:2.3:a:mediawiki:mediawiki:1.40.0:-:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.