CVE-2019-19329: Wikimedia Wikidata Query GUI

Medium severity, CVSS 6.1. EPSS: 1.4% chance of exploitation in the next 30 days.

In Wikibase Wikidata Query Service GUI before 0.3.6-SNAPSHOT 2019-11-07, when mathematical expressions in results are displayed directly, arbitrary JavaScript execution can occur, aka XSS. This was addressed by introducing MathJax as a new mathematics rendering engine. NOTE: this GUI code is no longer bundled with the Wikibase Wikidata Query Service snapshots, such as 0.3.6-SNAPSHOT.

Affected products

• Wikimedia Wikidata Query GUI: up to and including 0.3.5; version 0.3.6 only

Published 2019-11-27. Last modified 2026-06-17.