CVE-2026-64829

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.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/q2a/question2answer/pull/1017
https://www.vulncheck.com/advisories/question2answer-session-fixation-via-forgot-password-flow
http://seclists.org/fulldisclosure/2026/Aug/32

Configurations

No configuration.

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Question2Answer hasta la 1.8.8 contiene una vulnerabilidad de invalidación de sesión que permite a los atacantes con una cookie remember-me obtenida previamente retener el acceso autenticado al explotar el fallo del flujo de restablecimiento de contraseña olvidada para borrar el campo sessioncode en qa-include/app/users-edit.php. Mientras que el flujo normal de cambio de contraseña en qa-include/pages/account.php borra explícitamente el sessioncode para invalidar las cookies persistentes qa_session, el gestor de contraseña olvidada qa_finish_reset_user() omite este paso, permitiendo que cualquier cookie persistente válida emitida antes del restablecimiento continúe autenticando la cuenta después de que se complete el restablecimiento de la contraseña.

Information

Published : 2026-07-22 20:17

Updated : 2026-10-24 13:10

NVD link : CVE-2026-64829

Mitre link : CVE-2026-64829

CVE.ORG link : CVE-2026-64829

JSON object : View

Products Affected

No product.

CWE

CWE-613

Insufficient Session Expiration

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