Vulnerability Description
The YS LeadGen plugin for WordPress is vulnerable to authorization bypass and Stored Cross-Site Scripting via multiple AJAX endpoints in all versions up to, and including, 2.1.4 due to missing capability checks on popup management actions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create arbitrary popups and inject malicious JavaScript that executes when the popup is displayed, leading to Stored XSS.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/ysleadgen/tags/1.1.1/app/Controllers/
- https://plugins.trac.wordpress.org/browser/ysleadgen/tags/1.1.1/app/Controllers/
- https://plugins.trac.wordpress.org/browser/ysleadgen/tags/1.1.1/app/Controllers/
- https://plugins.trac.wordpress.org/changeset/3577391
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b62b8619-4348-4cf7-a57
FAQ
What is CVE-2026-1256?
CVE-2026-1256 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The YS LeadGen plugin for WordPress is vulnerable to authorization bypass and Stored Cross-Site Scripting via multiple AJAX endpoints in all versions up to, and including, 2.1.4 due to missing capabil...
How severe is CVE-2026-1256?
CVE-2026-1256 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1256?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.