CVE Vulnerability

CVE-2020-27620

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.1 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
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://phabricator.wikimedia.org/T265440 Vendor Advisory
https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634752 Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:mediawiki:skin:cosmos:*:*:*:*:*:*:*:*
Information

Published : 2020-10-22 04:15

Updated : 2020-10-26 08:05

NVD link : CVE-2020-27620

Mitre link : CVE-2020-27620

Products Affected
No products.
CWE
CWE-79