VulnerabilityModified
CVE-2020-27620
The Cosmos Skin for MediaWiki through 1.35.0 has stored XSS because MediaWiki messages were not being properly escaped.
MEDIUM 6.1EPSS 1.12%
Does this matter?
Lower severity and a low EPSS score (1.12%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.12% probability · 64th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- mediawiki/skin\
- Source
- cve@mitre.org
References
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634749Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634751Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634752Vendor Advisory
- https://phabricator.wikimedia.org/T265440Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634749Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634751Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634752Vendor Advisory
- https://phabricator.wikimedia.org/T265440Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.