CVE-2020-27620
MEDIUM
6.1
CVSS Score
Published: October 22, 2020 at 03:05 AM UTC
Updated: June 17, 2026 at 03:09 AM UTC
1 product affected across 1 vendorSkin
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Severity
MEDIUM6.1
Exploit prediction
EPSS 1%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 1.35.0cosmos
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634749x_refsource_MISCVendor Advisory
Source: [email protected]
https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634751x_refsource_MISCVendor Advisory
Source: [email protected]
https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634752CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-79
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