Vulnerability · Published Dec 24, 2021 · Assigned by mitre
CVE-2021-45473
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 1.3% (higher than 70% of all known vulnerabilities).
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)1.3%top 29.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In MediaWiki through 1.37, Wikibase item descriptions allow XSS, which is triggered upon a visit to an action=info URL (aka a page-information sidebar).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:25.10 | mediawiki | no fix listed | UBUNTU-CVE-2021-45473 |
| Ubuntu:26.04:LTS | mediawiki | no fix listed | UBUNTU-CVE-2021-45473 |
| Ubuntu:26.10 | mediawiki | no fix listed | UBUNTU-CVE-2021-45473 |
Affected products (as reported)
References
- https://phabricator.wikimedia.org/T294693 x_refsource_MISC
- https://gerrit.wikimedia.org/r/q/I3cd080a1a7dacd7396d37ee0c98cff0b4e241f8d x_refsource_MISC
- FEDORA-2021-bef1126908 vendor-advisory, x_refsource_FEDORA