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.

CVSS v3 6.1 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

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

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

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://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

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2020-10-22 04:15

Updated : 2024-11-21 05:21

NVD link : CVE-2020-27620

Mitre link : CVE-2020-27620

CVE.ORG link : CVE-2020-27620

JSON object : View

Products Affected

mediawiki

skin\

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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