CVE-2026-39839mediumCWE-80

CVE-2026-39839: medium-severity vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension

Stored XSS through URLs in Cargo's map format

Published

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.3epss 0.2%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Affected products
Wikimedia Foundation · Mediawiki - Cargo Extension
Related CVEs — Wikimedia Foundation Mediawiki - Cargo Extension

In the same product, most dangerous first.

CVE-2026-39837MEDIUMStored XSS through the dynamic table format in CargoEPSS 0.2%CVE-2026-39841MEDIUMStored XSS through list fields on Cargo's page values and Special:CargoTablesEPSS 0.2%CVE-2026-39840MEDIUMCSS injection in multiple Cargo display formatsEPSS 0.2%