Resource exhaustion in MediaWiki
CVE-2021-41800
MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). Visiting Special:Contributions can sometimes result in a long running SQL query because PoolCounter protection is mishandled.
EPSS: 0.017 (75.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Mediawiki
- Fedoraproject Fedora — versions 33, 34, 35
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Permissions Required)
- cve@mitre.org
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
Frequently asked questions
- What is CVE-2021-41800?
- CVE-2021-41800 is a medium-severity vulnerability in MediaWiki, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2021-10-11.
- How severe is CVE-2021-41800?
- Medium severity. CVSS v3 base score is 5.3 out of 10.