CVE-2026-103049: XSS in Cargo's Special:CargoQuery page due to unsanitized table headers

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-30 · updated 2026-09-30
Weakness: CWE-79

Description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo extension allows Reflected XSS. This issue affects Mediawiki - Cargo extension: before 1.46.1.

Affected products

The Wikimedia Foundation Mediawiki - Cargo extension: before 1.46.1 — fixed in 1.46.1

How to fix

Upgrade to a fixed version: The Wikimedia Foundation Mediawiki - Cargo extension 1.46.1. Check the vendor advisory for mitigations.

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cargo/+/1310132
https://phabricator.wikimedia.org/T431567

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