Auth bypass in MediaWiki
CVE-2019-16738
In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.
Vulnerability class: Broken Access Control
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: 0.018 (77.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- MediaWiki
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 30, 31
Weakness classification (CWE)
References
- phabricator.wikimedia.org/T230402 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Broken Link)
- www.debian.org/security/2019/dsa-4545 (vendor-advisory, Third Party Advisory)
- seclists.org/bugtraq/2019/Oct/32 (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Broken Link)
Frequently asked questions
- What is CVE-2019-16738?
- CVE-2019-16738 is a medium-severity vulnerability in MediaWiki, classified under Missing Authorization. CVSS score: 5.3/10. Published 2019-09-26.
- How severe is CVE-2019-16738?
- Medium severity. CVSS v3 base score is 5.3 out of 10.