CVE-2025-22319
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the MashShare WordPress plugin that allows unauthorized users to perform actions intended only for administrators. It affects all WordPress sites running MashShare versions up to 4.0.47. Attackers could modify plugin settings without proper authentication.
💻 Affected Systems
- Social Media Share Buttons | MashShare WordPress plugin
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify social sharing settings, inject malicious code, or disrupt website functionality by changing critical plugin configurations.
Likely Case
Unauthorized modification of social media sharing settings, potentially affecting user experience or enabling social engineering attacks.
If Mitigated
Minimal impact with proper authorization controls and network segmentation in place.
🎯 Exploit Status
Missing authorization vulnerabilities typically require minimal technical skill to exploit once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.0.48 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/mashsharer/vulnerability/wordpress-mashshare-plugin-4-0-47-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 MashShare plugin
4. Click 'Update Now' if update available
5. If no update appears, manually download version 4.0.48+ from WordPress.org
6. Deactivate, delete old version, upload new version, activate
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the vulnerable plugin until patched
wp plugin deactivate mashsharer
Access Restriction via .htaccess
linuxRestrict access to plugin admin endpoints
# Add to .htaccess in WordPress root:
<FilesMatch "mashsharer\.php">
Order Deny,Allow
Deny from all
</FilesMatch>
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block unauthorized access to plugin admin endpoints
- Remove the plugin entirely and use alternative social sharing solutions
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for MashShare version. If version is 4.0.47 or lower, you are vulnerable.Check Version:
wp plugin get mashsharer --field=versionVerify Fix Applied:
After update, verify plugin version shows 4.0.48 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unauthorized POST requests to /wp-admin/admin-ajax.php with mashsharer action parameters
- 403 errors from users attempting to access plugin admin functions
Network Indicators:
- Unusual traffic patterns to plugin-specific admin endpoints from unauthorized IPs
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" AND post_data CONTAINS "mashsharer") AND NOT user_role="administrator"