CVE-2025-12160
CVSS 7.2 High
- CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Published: 2025-11-21T10:15:47.910
The Simple User Registration plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘wpr_admin_msg’ parameter in all versions up to, and including, 6.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Related CVE by CWE
No related CWE found.
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Recently Exploited Similar Vulnerabilities
No recent KEV-listed items for this vendor/product.
How to fix CVE-2025-12160
CVE-2025-12160 is a high severity vulnerability affecting the affected product.
Description: The Simple User Registration plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘wpr_admin_msg’ parameter in all versions up to, and including, 6.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an […]
Affected Versions:
❌ Vulnerable: ≤ 6.6
✅ Safe: ≥ 6.7
Exploit Difficulty: EASY
⏱️ Time to exploit: < 1 hour
🛠️ Required skills: Basic web security knowledge
💰 Public exploits: Likely available
How to Fix:
- Check if you're running the affected product
- Verify version (vulnerable: ≤ 6.6)
- Update to ≥ 6.7 or later
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
Description: The Simple User Registration plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘wpr_admin_msg’ parameter in all versions up to, and including, 6.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an […]
Affected Versions:
❌ Vulnerable: ≤ 6.6
✅ Safe: ≥ 6.7
Exploit Difficulty: EASY
⏱️ Time to exploit: < 1 hour
🛠️ Required skills: Basic web security knowledge
💰 Public exploits: Likely available
How to Fix:
1 Identify affected systems
- Check if you're running the affected product
- Verify version (vulnerable: ≤ 6.6)
2 Immediate actions
- Update to ≥ 6.7 or later
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
3 Verification
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
4 Long-term prevention
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
Exploit Difficulty Assessment
EASY
Time to Exploit: < 1 hour
Skills Required: Basic web security knowledge
Public Exploits: Likely available
Affected Versions
Vulnerable: ≤ 6.6
Safe: ≥ 6.7
Vulnerability Timeline
Nov 21, 2025
Vulnerability Published
CVE details first published to NVD database
Nov 21, 2025
Imported to Database
Added to this CVE tracking system
Detection Rules & IOCs
No specific detection rules generated for this vulnerability type.
No vendor/product data available.