CVE-2025-15525

5.3 MEDIUM

📋 TL;DR

The Ajax Load More WordPress plugin has an authorization vulnerability that allows unauthenticated attackers to view titles and excerpts of private, draft, pending, scheduled, and trashed posts. This affects all WordPress sites using the plugin up to version 7.8.1. The vulnerability occurs in the parse_custom_args() function which fails to properly check user permissions.

💻 Affected Systems

Products:
  • Ajax Load More – Infinite Scroll, Load More, & Lazy Load WordPress plugin
Versions: All versions up to and including 7.8.1
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the vulnerable plugin enabled. The vulnerability is present in default configurations.

⚠️ 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

Sensitive post metadata could be exposed, potentially revealing confidential information about unpublished content, editorial workflows, or internal communications.

🟠

Likely Case

Attackers can enumerate unpublished post titles and excerpts, gaining insight into editorial calendars, upcoming announcements, or internal discussions that should remain private.

🟢

If Mitigated

With proper access controls and monitoring, the impact is limited to metadata exposure rather than full content compromise.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

The vulnerability requires no authentication and exploitation is straightforward via crafted HTTP requests to the vulnerable endpoint.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 7.8.2 or later

Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3200000/ajax-load-more

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find 'Ajax Load More'
4. Click 'Update Now' if available
5. Alternatively, download version 7.8.2+ from WordPress.org and manually update

🔧 Temporary Workarounds

Disable Ajax Load More Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate ajax-load-more

Restrict Access via WAF

all

Block requests to the vulnerable endpoint using web application firewall rules

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can access the WordPress site
  • Enable detailed logging and monitoring for suspicious requests to the Ajax Load More endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins for Ajax Load More version. If version is 7.8.1 or earlier, you are vulnerable.

Check Version:

wp plugin get ajax-load-more --field=version

Verify Fix Applied:

After updating, verify the plugin version shows 7.8.2 or later in WordPress admin.

📡 Detection & Monitoring

Log Indicators:

  • Unusual volume of requests to /wp-admin/admin-ajax.php with action=alm_get_posts
  • Requests with parameters attempting to access post_status values like 'private', 'draft', 'pending'

Network Indicators:

  • HTTP POST requests to admin-ajax.php with crafted post_status parameters
  • Unusual traffic patterns to WordPress admin endpoints from unauthenticated users

SIEM Query:

source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" AND parameters CONTAINS "action=alm_get_posts" AND parameters CONTAINS "post_status")

🔗 References

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