CVE-2026-8626

The SponsorMe plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via PHP_SELF Parameter in all versions up to, and including, 0.5.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The PHP_SELF value is reflected in two separate locations within the vulnerable function — a form action attribute and an anchor href attribute — both of which can be exploited by appending a crafted payload to the wp-admin/admin.php URL path.

• CWE-79

• https://plugins.trac.wordpress.org/browser/sponsorme/trunk/sponsorme.php#L440
• https://plugins.trac.wordpress.org/browser/sponsorme/trunk/sponsorme.php#L475
• https://www.wordfence.com/threat-intel/vulnerabilities/id/7df7f541-b8aa-46fa-bfca-b333beea27f9?source=cve

Published

May 20, 2026

Last Modified

Jul 23, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-8616The Fense Proxy & VPN Blocker plugin for WordPress is vulner…5.3
• CVE-2026-8617The SearchPlus plugin for WordPress is vulnerable to unautho…5.3
• CVE-2026-8620IBM Web Server Plug-ins for WebSphere Application Server and…7.5
• CVE-2026-8621Crabbox prior to v0.12.0 contains an authentication bypass v…8.8
• CVE-2026-8622The Image Sizes on Demand plugin for WordPress is vulnerable…6.1
• CVE-2026-8624The LJ comments import: reloaded plugin for WordPress is vul…6.1
• CVE-2026-8627The Correct Prices plugin for WordPress is vulnerable to Ref…6.1
• CVE-2026-8628The EntreDroppers plugin for WordPress is vulnerable to Refl…6.1
• CVE-2026-8629Crabbox prior to v0.12.0 contains a privilege escalation vul…8.6
• CVE-2026-8631A potential security vulnerability has been identified in th…9.8
• CVE-2026-8632A potential security vulnerability has been identified in th…7.8
• CVE-2026-8633IBM Web Server Plug-ins for WebSphere Application Server and…9.8