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2913 articles · 109766 vulns · 38/41 feeds (7d)
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CVE-2026-39839PATCHED
wikimedia foundation · mediawiki - cargo extension

Stored XSS through URLs in Cargo's map format

Description

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension allows Stored XSS.This issue affects Mediawiki - Cargo Extension: before 3.8.7.

Affected Products

VendorProductVersions
wikimedia foundationmediawiki - cargo extension0, 3.8.6

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
open sourcemediawikicert_advisory90%

References

  • https://phabricator.wikimedia.org/T416271
  • https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237957
  • https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1237977

Related News (2 articles)

Tier B
BSI Advisories6h ago
[NEU] [hoch] MediaWiki Erweiterungen: Mehrere Schwachstellen ermöglichen Cross-Site Scripting
→ No new info (linked only)
Tier C
VulDB2d ago
CVE-2026-39839 | Wikimedia Cargo Extension up to 3.8.6 on Mediawiki cross site scripting
→ No new info (linked only)
CISA KEV❌ No
Actively exploited❌ No
Patch available
3.8.7
CWECWE-80
PublishedApr 7, 2026
Last enriched2d agov2
Trending Score45
Source articles2
Independent2
Info Completeness8/14
Missing: cvss, epss, kev, exploit, iocs, mitre_attack

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Related CVEs (5)

HIGHCVE-2026-39840EXP
CSS injection in multiple Cargo display formats
Trending: 64
NONECVE-2026-39934EXP
Growth Experiments ReassignMenteesJob runs as an infinite loop
Trending: 59
NONECVE-2026-5762EXP
ReportIncident DiscussionTools integration causes slow requests
Trending: 58
HIGHCVE-2026-39837
Stored XSS through the dynamic table format in Cargo
Trending: 45
HIGHCVE-2026-39841
Stored XSS through list fields on Cargo's page values and Special:CargoTables
Trending: 45

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 7, 2026
Discovered by ZDM
Apr 7, 2026
Patch Available
Apr 7, 2026
Updated: affectedVersions, severity
Apr 7, 2026

Version History

v2
Last enriched 2d ago
v2Tier C2d ago

Updated affected versions to 3.8.6, changed severity to HIGH, and noted that no exploit exists.

affectedVersionsseverity
via VulDB
v12d ago

Initial creation