CVEvulnerability
CVE-2020-27620
6.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-10-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-79
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 configurations
• mediawiki skin\ cosmos (<= 1.35.0)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634749 Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634751 Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634752 Vendor Advisory
- https://phabricator.wikimedia.org/T265440 Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634749 Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634751 Vendor Advisory
- https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634752 Vendor Advisory
- https://phabricator.wikimedia.org/T265440 Vendor Advisory