Information disclosure in MediaWiki
CVE-2021-45038
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. By using an action=rollback query, attackers can view private wiki contents.
Vulnerability class: Information Disclosure
Published · last modified .
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:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.013 (70.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- phabricator.wikimedia.org/T297574 (Third Party Advisory)
- www.mediawiki.org/wiki/2021-12_security_release/FAQ (Vendor Advisory)
- security.gentoo.org/glsa/202305-24 (vendor-advisory)
Frequently asked questions
- What is CVE-2021-45038?
- CVE-2021-45038 is a medium-severity vulnerability in MediaWiki, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-12-17.
- How severe is CVE-2021-45038?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-45038 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.