CVE-2020-27620

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Published Oct 22, 2020 CVSS 3.1 · 6.1 Medium EPSS 1.1% KEV · Not listed

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 Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-20127	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: 1.1% (1.123% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634749
https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634751
https://gerrit.wikimedia.org/r/c/mediawiki/skins/Cosmos/+/634752
https://phabricator.wikimedia.org/T265440

History

No history.

Subscriptions

Mediawiki Skin\

Weaknesses

CWE-79

Sources

CVE record Updated: Aug 4, 2024, 4:18 PM

Status: PUBLISHED
Assigner: mitre
Published: Oct 22, 2020, 3:05 AM
Updated: Aug 4, 2024, 4:18 PM
Reserved: Oct 22, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:09 AM

Status: Modified
Published: Oct 22, 2020, 4:15 AM
Modified: Jun 17, 2026, 3:09 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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