Information disclosure in MediaWiki
CVE-2021-31549
An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. The Special:AbuseFilter/examine form allowed for the disclosure of suppressed MediaWiki usernames to unprivileged users.
Vulnerability class: Information Disclosure
EPSS: 0.008 (53.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Mediawiki
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Issue Tracking, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-31549?
- CVE-2021-31549 is a medium-severity vulnerability in MediaWiki, classified under Information Disclosure. CVSS score: 4.3/10. Published 2021-04-22.
- How severe is CVE-2021-31549?
- Medium severity. CVSS v3 base score is 4.3 out of 10.