CVE-2025-62931

8.8 HIGH

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the Microsoftstart MSN Partner Hub WordPress plugin that allows attackers to bypass access controls. Attackers can exploit incorrectly configured security levels to perform unauthorized actions. All WordPress sites running the affected plugin versions are vulnerable.

💻 Affected Systems

Products:
  • Microsoftstart MSN Partner Hub WordPress Plugin
Versions: All versions up to and including 2.8.7
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with the vulnerable plugin 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 compromise of the WordPress site including administrative takeover, data theft, malware injection, and site defacement.

🟠

Likely Case

Unauthorized content modification, privilege escalation, or data exposure through the plugin's functionality.

🟢

If Mitigated

Limited impact with proper network segmentation and additional authentication layers in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Broken access control vulnerabilities are commonly exploited with simple HTTP requests.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 2.8.7

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/microsoft-start/vulnerability/wordpress-msn-partner-hub-plugin-2-8-7-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins. 3. Find 'Microsoftstart MSN Partner Hub'. 4. Update to latest version. 5. Verify update completed successfully.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate microsoft-start

Web Application Firewall Rule

all

Block suspicious requests to plugin endpoints

# Add WAF rule to block /wp-content/plugins/microsoft-start/ requests from unauthorized users

🧯 If You Can't Patch

  • Implement strict network access controls to limit plugin exposure
  • Add additional authentication layer for plugin administration functions

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Microsoftstart MSN Partner Hub version

Check Version:

wp plugin get microsoft-start --field=version

Verify Fix Applied:

Verify plugin version is greater than 2.8.7 and test access control functionality

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to plugin endpoints
  • Unexpected POST/GET requests to /wp-content/plugins/microsoft-start/

Network Indicators:

  • Unusual traffic patterns to plugin-specific URLs
  • Requests bypassing authentication to admin functions

SIEM Query:

source="wordpress.log" AND (uri_path="/wp-content/plugins/microsoft-start/" AND (response_code=200 OR response_code=302) AND user="-")

🔗 References

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