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

> Unauthenticated attackers can clear the patterns cache by tricking administrators into clicking a link due to missing nonce validation.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 20 Jan 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-q8hq-6988-hf6w

## What is CVE-2024-0623?

CVE-2024-0623 is a medium-severity vulnerability in vektor-inc VK Block Patterns, published on 20 Jan 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2024-0623?

It affects 1 product.


Products: Vektor-Inc Vk Block Patterns.

## How do I fix CVE-2024-0623?

No fix has been published for CVE-2024-0623 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-0623 being exploited?

There is no known exploitation of CVE-2024-0623 in the wild and no public exploit code.

Public exploit code:

- a PoC for CVE-2024-0623/WP Plugin - VK Block Patterns (<= 1.31.1.1) (github_poc): https://github.com/kodaichodai/CVE-2024-0623

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-0623 and fix it if it is affected.

What it is: CVE-2024-0623 is a medium-severity vulnerability in vektor-inc VK Block Patterns, published on 20 Jan 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2024-0623 in the wild and no public exploit code.

Affected product: vektor-inc VK Block Patterns. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-0623/ (Markdown: https://insights.sbomify.com/CVE-2024-0623/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-0623
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-0623
- OSV: https://osv.dev/vulnerability/CVE-2024-0623

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-0623/
Summaries are generated and may contain mistakes; the official description above is the record.