Vulnerability · Published Dec 24, 2021 · Assigned by mitre
CVE-2021-45472
Medium 6.1
In plain English
A medium-severity security flaw in the mediawiki package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)1.0%top 37.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In MediaWiki through 1.37, XSS can occur in Wikibase because an external identifier property can have a URL format that includes a $1 formatter substitution marker, and the javascript: URL scheme (among others) can be used.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:25.10 | mediawiki | no fix listed | UBUNTU-CVE-2021-45472 |
| Ubuntu:26.04:LTS | mediawiki | no fix listed | UBUNTU-CVE-2021-45472 |
| Ubuntu:26.10 | mediawiki | no fix listed | UBUNTU-CVE-2021-45472 |
Affected products (as reported)
References
- https://phabricator.wikimedia.org/T297570 x_refsource_MISC
- https://gerrit.wikimedia.org/r/q/I37ece1dfdc80d38055067c9c4fa73ba591acd8bd x_refsource_MISC
- FEDORA-2021-bef1126908 vendor-advisory, x_refsource_FEDORA