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.

Classification

CVE ID: CVE-2023-37300

CVSS Base Severity: LOW

CVSS Base Score: 0.0

Affected Products

Vendor: n/a

Product: n/a

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.07% (probability of being exploited)

EPSS Percentile: 33.85% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://phabricator.wikimedia.org/T330968
https://gerrit.wikimedia.org/r/q/I993fdcae1fedb7dd543b35a477026bc727615b0a

Timeline