CVE-2023-40331

4.3 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the bqworks Accordion Slider WordPress plugin that allows attackers to exploit incorrectly configured access control security levels. The vulnerability affects all versions up to and including 1.9.6, potentially allowing unauthorized users to access restricted functionality.

💻 Affected Systems

Products:
  • bqworks Accordion Slider WordPress Plugin
Versions: n/a through 1.9.6
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations using the vulnerable plugin versions. The vulnerability exists in the plugin's access control implementation.

⚠️ 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 slider content, inject malicious code, or access administrative functions depending on plugin configuration, potentially leading to site defacement or compromise.

🟠

Likely Case

Unauthorized users could modify slider settings or content, potentially disrupting website functionality or injecting unwanted content.

🟢

If Mitigated

With proper access controls and authentication requirements, impact would be limited 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, making exploitation straightforward once the vulnerable endpoint is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.9.7 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/accordion-slider/vulnerability/wordpress-accordion-slider-plugin-1-9-6-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 'Accordion Slider' and click 'Update Now'. 4. Alternatively, download version 1.9.7+ from WordPress.org and replace the plugin files.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the Accordion Slider plugin until patched

wp plugin deactivate accordion-slider

Restrict plugin access

all

Use web application firewall rules to restrict access to plugin endpoints

🧯 If You Can't Patch

  • Implement strict access controls at the web server level to restrict access to plugin directories
  • Monitor for unauthorized access attempts to plugin endpoints and review access logs regularly

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Accordion Slider version. If version is 1.9.6 or earlier, system is vulnerable.

Check Version:

wp plugin get accordion-slider --field=version

Verify Fix Applied:

Verify plugin version is 1.9.7 or later in WordPress admin panel. Test restricted functionality to ensure proper authorization checks are in place.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to /wp-content/plugins/accordion-slider/ endpoints
  • POST requests to plugin admin functions without proper authentication

Network Indicators:

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

SIEM Query:

source="wordpress.log" AND ("accordion-slider" OR "/wp-content/plugins/accordion-slider/") AND (status=403 OR status=401)

🔗 References

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