CVE-2026-64829: q2a QUESTION2ANSWER

High severity, CVSS 7.4. EPSS: 0.4% chance of exploitation in the next 30 days.

Question2Answer through 1.8.8 contains a session invalidation vulnerability that allows attackers with a previously obtained remember-me cookie to retain authenticated access by exploiting the forgot-password reset flow's failure to clear the sessioncode field in qa-include/app/users-edit.php. While the normal password-change flow in qa-include/pages/account.php explicitly clears the sessioncode to invalidate persistent qa_session cookies, the forgot-password handler qa_finish_reset_user() omits this step, allowing any valid persistent cookie issued before the reset to continue authenticating the account after the password reset completes.

Affected products

• q2a QUESTION2ANSWER: up to and including 1.8.8

Published 2026-07-22. Last modified 2026-08-07.