CVE-2025-5259
📋 TL;DR
This vulnerability allows authenticated WordPress users with Contributor-level access or higher to inject malicious scripts via the 'align' parameter in the Minimal Share Buttons plugin. The scripts are stored and execute whenever other users view affected pages, enabling session hijacking, defacement, or malware distribution. All WordPress sites using vulnerable plugin versions are affected.
💻 Affected Systems
- Minimal Share Buttons 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 steal administrator credentials, install backdoors, redirect users to malicious sites, or completely compromise the WordPress site and potentially the server.
Likely Case
Site defacement, cookie/session theft leading to account takeover, or redirection to phishing/malware sites affecting visitors.
If Mitigated
Limited to authenticated users only, reducing exposure but still allowing privilege escalation from Contributor to higher roles.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple. Public proof-of-concept exists in the patch diff showing the vulnerable code pattern.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 1.7.4 or later
Vendor Advisory: https://wordpress.org/plugins/minimal-share-buttons/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Minimal Share Buttons' and click 'Update Now'. 4. Alternatively, delete and reinstall the latest version from WordPress repository.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the Minimal Share Buttons plugin until patched
wp plugin deactivate minimal-share-buttons
Restrict User Roles
allLimit Contributor and Author role assignments to trusted users only
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads in 'align' parameter
- Apply WordPress security plugins with XSS protection like Wordfence or Sucuri
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Minimal Share Buttons → Version. If version is 1.7.3 or lower, you are vulnerable.Check Version:
wp plugin get minimal-share-buttons --field=versionVerify Fix Applied:
After update, confirm plugin version is 1.7.4 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin with 'align' parameter containing script tags
- Multiple failed login attempts followed by successful Contributor-level login
Network Indicators:
- HTTP requests containing JavaScript in 'align' parameter values
- Unexpected outbound connections from WordPress site after page views
SIEM Query:
source="wordpress.log" AND ("align=" AND ("<script" OR "javascript:" OR "onerror=" OR "onload="))🔗 References
- https://plugins.trac.wordpress.org/browser/minimal-share-buttons/trunk/inc/class-minimal-share-buttons.php#L67
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3302704%40minimal-share-buttons&old=3074272%40minimal-share-buttons&sfp_email=&sfph_mail=
- https://wordpress.org/plugins/minimal-share-buttons/#developers
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7ac2ac7a-4cb5-4051-bec7-a22693c50915?source=cve
