CVE-2025-49950

7.3 HIGH

📋 TL;DR

This CVE describes a missing authorization vulnerability in the Billingo Official Integration WordPress plugin that allows authenticated attackers to escalate privileges. The vulnerability affects all WordPress sites using the plugin version 4.2.5 or earlier. Attackers could gain administrative access to affected WordPress installations.

💻 Affected Systems

Products:
  • Official Integration for Billingo WordPress plugin
Versions: All versions up to and including 4.2.5
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin enabled. The plugin must be 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

Complete site takeover where attackers gain administrative privileges, install backdoors, steal sensitive data, deface websites, or use the compromised site for further attacks.

🟠

Likely Case

Attackers escalate from lower-privileged user accounts to administrator roles, enabling them to modify content, install malicious plugins, or access sensitive information.

🟢

If Mitigated

With proper access controls and monitoring, unauthorized privilege escalation attempts would be detected and blocked before causing significant damage.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated access but the vulnerability is straightforward to exploit once an attacker has any user account.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 4.2.6 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/billingo/vulnerability/wordpress-official-integration-for-billingo-plugin-4-2-5-privilege-escalation-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Official Integration for Billingo'. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the Billingo plugin until patched

wp plugin deactivate official-integration-for-billingo

Restrict user registration

all

Disable new user registration to prevent attackers from creating accounts

wp option update users_can_register 0

🧯 If You Can't Patch

  • Implement strict access controls and monitor for unusual privilege changes
  • Apply network segmentation to isolate WordPress installation from critical systems

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins → Official Integration for Billingo version

Check Version:

wp plugin get official-integration-for-billingo --field=version

Verify Fix Applied:

Verify plugin version is 4.2.6 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual user role changes in WordPress logs
  • Multiple failed login attempts followed by successful login with privilege escalation

Network Indicators:

  • Unusual admin panel access patterns from non-administrative users

SIEM Query:

source="wordpress" AND (event="user_role_change" OR event="capabilities_modified")

🔗 References

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