# CVE-2024-5326: Missing authorization in Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX

> Authenticated attackers with Contributor access can modify arbitrary site options, potentially enabling registration and granting Administrator privileges to new users.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 May 2024
- **Updated:** 8 Apr 2026

## What is CVE-2024-5326?

CVE-2024-5326 is a high-severity missing authorization vulnerability in wpxpo Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX, published on 30 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'postx_presets_callback' function in all versions up to, and including, 4.1.2. This makes it possible for authenticated attackers, with Contributor-level access and above, to change arbitrary options on affected sites. This can be used to enable new user registration and set the default role for new users to Administrator.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2024-5326?


## How do I fix CVE-2024-5326?

No fix has been published for CVE-2024-5326 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-5326 being exploited?

There is no known exploitation of CVE-2024-5326 in the wild and no public exploit code.

Public exploit code:

- CVE-2024-5326 Post Grid Gutenberg Blocks and WordPress Blog Plugin – PostX <= 4.1.2 - Missing Authorization to Arbitrary Options Update (github_poc): https://github.com/djayaGit/CVE-2024-5326-Poc
- https://github.com/cve-2024/CVE-2024-5326-Poc (github_poc): https://github.com/cve-2024/CVE-2024-5326-Poc

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-5326 and fix it if it is affected.

What it is: CVE-2024-5326 is a high-severity missing authorization vulnerability in wpxpo Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX, published on 30 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-5326 in the wild and no public exploit code.

Affected product: wpxpo Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX. 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-2024-5326/ (Markdown: https://insights.sbomify.com/CVE-2024-5326/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-5326
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-5326
- OSV: https://osv.dev/vulnerability/CVE-2024-5326

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-5326/
Summaries are generated and may contain mistakes; the official description above is the record.