Privilege escalation in MediaWiki
CVE-2021-30152
An issue was discovered in MediaWiki before 1.31.13 and 1.32.x through 1.35.x before 1.35.2. When using the MediaWiki API to "protect" a page, a user is currently able to protect to a higher level than they currently have permissions for.
Vulnerability class: Privilege Escalation
Published · last modified .
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:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (67.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- MediaWiki
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 33, 34
Weakness classification (CWE)
References
- phabricator.wikimedia.org/T270713 (Exploit, Patch, Issue Tracking, Vendor Advisory)
- www.debian.org/security/2021/dsa-4889 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2021/05/msg00003.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/05/msg00006.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202107-40 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-30152?
- CVE-2021-30152 is a medium-severity vulnerability in MediaWiki, classified under Improper Privilege Management. CVSS score: 4.3/10. Published 2021-04-09.
- How severe is CVE-2021-30152?
- Medium severity. CVSS v3 base score is 4.3 out of 10.