CVE-2024-23518

4.3 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the ACF Photo Gallery Field WordPress plugin. It allows unauthorized users to access or modify photo gallery content that should be restricted. WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Navneil Naicker ACF Photo Gallery Field WordPress Plugin
Versions: n/a through 2.6
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with the vulnerable plugin version 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

Unauthorized users could delete, modify, or access private photo galleries containing sensitive images, potentially leading to data exposure or content destruction.

🟠

Likely Case

Unauthorized users accessing or modifying photo gallery content they shouldn't have permissions for, potentially exposing private images or disrupting gallery functionality.

🟢

If Mitigated

With proper access controls and authentication checks, impact would be limited to authorized users only accessing their permitted content.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires understanding of WordPress plugin structure but no special tools or advanced techniques.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.7 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/navz-photo-gallery/wordpress-acf-photo-gallery-field-plugin-2-5-broken-access-control-vulnerability

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'ACF Photo Gallery Field'. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 2.7+ from WordPress repository and replace plugin files.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate navz-photo-gallery

Restrict Access

all

Implement additional access controls at web server level

# Add to .htaccess for Apache:
<Files "navz-photo-gallery/*">
Require valid-user
</Files>
# Add to nginx config:
location ~ /wp-content/plugins/navz-photo-gallery/ {
    auth_basic "Restricted";
    auth_basic_user_file /etc/nginx/.htpasswd;
}

🧯 If You Can't Patch

  • Remove the plugin entirely if not essential for site functionality
  • Implement strict firewall rules to restrict access to plugin directories and admin interfaces

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for 'ACF Photo Gallery Field' version 2.6 or earlier

Check Version:

wp plugin get navz-photo-gallery --field=version

Verify Fix Applied:

Verify plugin version is 2.7 or later in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to /wp-content/plugins/navz-photo-gallery/
  • Unexpected POST/GET requests to plugin endpoints from unauthenticated users

Network Indicators:

  • Unusual traffic patterns to plugin-specific URLs from unauthorized IPs

SIEM Query:

source="wordpress.log" AND ("navz-photo-gallery" OR "acf-photo-gallery") AND (status=403 OR status=401)

🔗 References

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