CVE-2026-45126

The record

MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP Security Questions module does not validate the anti-CSRF token correctly, allowing same-site attackers to enable or disable registration challenge questions with a specially crafted URL. The controller processes GET requests for the disable and enable actions to modify mybb_questions.active without verifying the my_post_key token attached by the user interface. The uniquely identifying implementation details include admin/modules/config/questions.php. This issue is fixed in version 1.8.40.

Affected packages

Related vulnerabilities

• CVE-2026-96388 Cross-Site Request Forgery (CSRF) vulnerability in Drupal Tawk.to - Live chat application… CWE-352
• CVE-2026-96374 Cross-Site Request Forgery (CSRF) vulnerability in Drupal Project Browser allows Cross… CWE-352
• CVE-2026-114719 Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a CSRF validation… CWE-352
• CVE-2026-114662 Obot before 0.26.0 contains an authentication bypass vulnerability in the CLI login flow… CWE-352
• CVE-2026-111883 Locust through 2.46.7 contains a cross-site request forgery vulnerability that allows… CWE-352
• CVE-2026-62139 Unauthenticated Cross Site Request Forgery (CSRF) in Site Kit by Google <= 1.186.0… CWE-352
• CVE-2026-62133 Subscriber Cross Site Request Forgery (CSRF) in RTMKit <= 2.1.5 versions. CWE-352
• CVE-2026-89245 WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a cross-site… CWE-352