CVE-2025-62924

8.8 HIGH

📋 TL;DR

This vulnerability allows attackers to bypass authorization controls in the Post Grid and Gutenberg Blocks WordPress plugin, potentially accessing or modifying content they shouldn't have permission to view. It affects all WordPress sites running vulnerable versions of this plugin.

💻 Affected Systems

Products:
  • PickPlugins Post Grid and Gutenberg Blocks
Versions: n/a through <= 2.3.17
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with vulnerable plugin versions installed and activated.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could modify or delete posts, pages, or other content, potentially defacing websites or deleting critical information.

🟠

Likely Case

Unauthorized users accessing restricted content or performing limited content modifications.

🟢

If Mitigated

Proper access controls and authentication would prevent exploitation, limiting impact to authorized users only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability involves missing authorization checks, which typically require minimal technical skill to exploit once the attack vector is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.3.18 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/post-grid/vulnerability/wordpress-post-grid-and-gutenberg-blocks-plugin-2-3-17-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find 'Post Grid and Gutenberg Blocks'
4. Click 'Update Now' if available
5. If no update appears, manually download version 2.3.18+ from WordPress.org
6. Deactivate old plugin, upload new version, then reactivate

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily deactivate the Post Grid and Gutenberg Blocks plugin until patched

wp plugin deactivate post-grid

Restrict plugin access

all

Use web application firewall rules to block access to plugin-specific endpoints

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can access the WordPress admin interface
  • Enable comprehensive logging and monitoring for unauthorized content access attempts

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for 'Post Grid and Gutenberg Blocks' version <= 2.3.17

Check Version:

wp plugin get post-grid --field=version

Verify Fix Applied:

Confirm plugin version is 2.3.18 or higher in WordPress admin plugins list

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized POST requests to post-grid endpoints
  • Unexpected content modifications by non-admin users
  • Failed authorization attempts on restricted content

Network Indicators:

  • Unusual traffic patterns to /wp-content/plugins/post-grid/ endpoints
  • POST requests to grid-related endpoints from unauthorized IPs

SIEM Query:

source="wordpress.log" AND ("post-grid" OR "grid-blocks") AND ("POST" OR "unauthorized" OR "403")

🔗 References

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