CVE-2026-25036

6.5 MEDIUM

📋 TL;DR

This CVE describes a missing authorization vulnerability in the WP Chill Passster WordPress plugin that allows attackers to bypass content protection mechanisms. It affects all WordPress sites using Passster plugin versions up to and including 4.2.25. Attackers can exploit incorrectly configured access controls to view protected content without proper authorization.

💻 Affected Systems

Products:
  • WP Chill Passster (content-protector WordPress plugin)
Versions: All versions up to and including 4.2.25
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with the Passster plugin active and content protection enabled.

⚠️ 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

Complete bypass of all content protection, allowing unauthorized access to premium content, private documents, or restricted site areas that should be protected.

🟠

Likely Case

Unauthorized users accessing protected content that should require authentication or payment, potentially leading to content theft or loss of revenue.

🟢

If Mitigated

Limited impact with proper network segmentation and additional authentication layers, though core functionality remains vulnerable.

🌐 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 vulnerability is understood.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.2.26 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/content-protector/vulnerability/wordpress-passster-plugin-4-2-25-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 'Passster' plugin
4. Click 'Update Now' if update is available
5. If no update appears, manually download version 4.2.26+ from WordPress.org
6. Deactivate old version, upload new version, then activate

🔧 Temporary Workarounds

Disable Passster Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate passster

Implement Additional Authentication Layer

all

Add .htaccess authentication or WordPress membership plugin as temporary protection

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block unauthorized access patterns
  • Monitor access logs for unusual content access patterns and implement alerting

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins for Passster version

Check Version:

wp plugin list --name=passster --field=version

Verify Fix Applied:

Verify Passster plugin version is 4.2.26 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed authorization attempts followed by successful access to protected content URLs
  • Unauthorized users accessing /wp-content/plugins/passster/ protected endpoints

Network Indicators:

  • Unusual traffic patterns to protected content without authentication headers
  • Requests bypassing expected authentication flows

SIEM Query:

source="wordpress.log" AND ("passster" OR "content-protector") AND ("unauthorized" OR "bypass" OR "protected")

🔗 References

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