CVE-2026-1994
📋 TL;DR
The s2Member WordPress plugin has a critical vulnerability that allows unauthenticated attackers to change any user's password, including administrators. This enables complete account takeover and privilege escalation. All WordPress sites using s2Member versions up to 260127 are affected.
💻 Affected Systems
- s2Member 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
Complete site compromise where attackers gain administrative access, install backdoors, steal sensitive data, deface the site, or use it for further attacks.
Likely Case
Attackers gain administrative access to vulnerable WordPress sites, potentially leading to data theft, malware installation, or site defacement.
If Mitigated
With proper monitoring and detection, unauthorized password changes could be detected and reversed before significant damage occurs.
🎯 Exploit Status
The vulnerability is simple to exploit and requires no authentication, making it highly attractive to attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 260127
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3461625/s2member
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find s2Member plugin. 4. Click 'Update Now' if available. 5. If no update is available, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Temporary plugin deactivation
allDisable the s2Member plugin until a patch can be applied
wp plugin deactivate s2member
Web application firewall rule
allBlock requests to the vulnerable endpoint
🧯 If You Can't Patch
- Immediately deactivate and remove the s2Member plugin from all WordPress installations
- Implement strict monitoring for unauthorized password reset attempts and user privilege changes
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for s2Member version 260127 or earlierCheck Version:
wp plugin get s2member --field=versionVerify Fix Applied:
Verify s2Member plugin version is higher than 260127 or plugin is completely removed📡 Detection & Monitoring
Log Indicators:
- Unusual password reset activity
- Multiple failed login attempts followed by successful login from new IP
- User privilege escalation logs
Network Indicators:
- HTTP POST requests to s2Member password reset endpoints from unexpected sources
SIEM Query:
source="wordpress" AND (event="password_reset" OR event="user_role_change") AND user_agent NOT CONTAINS "expected_browser_pattern"