Vulnerability · Published Apr 9, 2021 · Assigned by mitre
CVE-2021-30155
Medium 4.3
In plain English
A medium-severity security flaw in the mediawiki package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.3Medium
Exploit odds (30 days)1.2%top 31.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. ContentModelChange does not check if a user has correct permissions to create and set the content model of a nonexistent page.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | mediawiki | 1:1.35.2-1 | DEBIAN-CVE-2021-30155 |
| Debian:13 | mediawiki | 1:1.35.2-1 | DEBIAN-CVE-2021-30155 |
| Debian:14 | mediawiki | 1:1.35.2-1 | DEBIAN-CVE-2021-30155 |
Affected products (as reported)
References
- https://phabricator.wikimedia.org/T270988 x_refsource_MISC
- DSA-4889 vendor-advisory, x_refsource_DEBIAN
- FEDORA-2021-f4223b6684 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-d298103d3a vendor-advisory, x_refsource_FEDORA
- [debian-lts-announce] 20210505 [SECURITY] [DLA 2648-1] mediawiki security update mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20210506 [SECURITY] [DLA 2648-2] mediawiki regression update mailing-list, x_refsource_MLIST
- GLSA-202107-40 vendor-advisory, x_refsource_GENTOO