Vulnerability · Published Oct 22, 2020 · Assigned by mitre
CVE-2020-27620
Medium 6.1
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)1.1%top 33.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The Cosmos Skin for MediaWiki through 1.35.0 has stored XSS because MediaWiki messages were not being properly escaped. This is related to wfMessage and Html::rawElement, as demonstrated by CosmosSocialProfile::getUserGroups.
Affected products (as reported)
References
- https://phabricator.wikimedia.org/T265440 x_refsource_MISC
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634749 x_refsource_MISC
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634752 x_refsource_MISC
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634751 x_refsource_MISC