CVE-2026-64829
HighCVSS 7.4Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
Question2Answer through version 1.8.8 contains a session invalidation vulnerability that allows attackers with a previously obtained remember-me cookie to retain authenticated access after a password reset, because the forgot-password flow does not clear the sessioncode field.
Risk Assessment
An attacker who obtained a remember-me cookie can still access the victim's account even after a password change, threatening data confidentiality.
Recommendation
Update Question2Answer to a patched version and manually invalidate all existing remember-me cookies.
Other vulnerabilities in Question2Answer
Original NVD description (English source)
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.