CVE-2023-50877

4.3 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the Product Filter by WBW WordPress plugin. It allows attackers to exploit incorrectly configured access control security levels, potentially accessing restricted functionality. All WordPress sites using affected versions of this plugin are vulnerable.

💻 Affected Systems

Products:
  • Product Filter by WBW (WordPress plugin)
Versions: All versions up to and including 2.5.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the vulnerable plugin active. The plugin must be installed and activated for exploitation.

⚠️ 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 product filter settings, manipulate displayed content, or potentially access administrative functions depending on plugin permissions.

🟠

Likely Case

Unauthorized users could alter product filtering behavior, affecting e-commerce functionality and potentially manipulating what products customers see.

🟢

If Mitigated

With proper access controls and authentication checks, the vulnerability would be prevented and only authorized users could access plugin functions.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Missing authorization vulnerabilities typically require minimal technical skill to exploit once the attack vector is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 2.5.0

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/woo-product-filter/vulnerability/wordpress-product-filter-by-wbw-plugin-2-5-0-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 'Product Filter by WBW'. 4. Click 'Update Now' if update available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily deactivate the vulnerable plugin until patched

Access Restriction

all

Implement web application firewall rules to restrict access to plugin endpoints

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate WordPress installation
  • Deploy web application firewall with rules blocking suspicious requests to plugin endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for 'Product Filter by WBW' version 2.5.0 or earlier

Check Version:

wp plugin list --name='Product Filter by WBW' --field=version

Verify Fix Applied:

Verify plugin version is higher than 2.5.0 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to plugin-specific endpoints
  • HTTP requests to /wp-content/plugins/woo-product-filter/ with non-admin users

Network Indicators:

  • Unusual POST/GET requests to plugin admin endpoints from unauthenticated sources

SIEM Query:

source="wordpress" AND (uri_path="/wp-content/plugins/woo-product-filter/" OR plugin_name="Product Filter by WBW") AND user_role!="administrator"

🔗 References

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