Vulnerability · Published Jun 30, 2023 · Assigned by mitre
CVE-2023-37300
Medium 5.3
In plain English
A medium-severity incorrect authorization in the mediawiki package (Ubuntu). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)0.7%top 47.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An issue was discovered in the CheckUserLog API in the CheckUser extension for MediaWiki through 1.39.3. There is incorrect access control for visibility of hidden users.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:25.10 | mediawiki | no fix listed | UBUNTU-CVE-2023-37300 |
| Ubuntu:26.04:LTS | mediawiki | no fix listed | UBUNTU-CVE-2023-37300 |
| Ubuntu:26.10 | mediawiki | no fix listed | UBUNTU-CVE-2023-37300 |
Affected products (as reported)
Weakness: CWE-863