CVE-2025-56643

CVE-2025-56643 is a critical vulnerability in Requarks Wiki.js version 2.5.307, where the application does not properly revoke or invalidate active JWT tokens upon user logout. As a result, previously issued tokens remain valid and can be reused to access the system even after logout, undermining session integrity and enabling potential unauthorized access if a token is compromised. The flaw exists in the authentication resolver logic and impacts both the GraphQL endpoint and the logout mechanism. It is associated with CWE-613 and carries a CVSS v3.1 base score of 9.1 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N), indicating high severity due to network accessibility, low complexity, and no privileges or user interaction required.

Any network-based attacker can exploit this vulnerability without privileges or user interaction by obtaining a valid JWT token, such as through interception, theft, or prior compromise. With the token in hand, the attacker can authenticate and access protected resources indefinitely, bypassing the logout process and maintaining unauthorized persistence in the system. This leads to high impacts on confidentiality and integrity, allowing data exfiltration, modification, or other malicious actions under the victim's session context.

Mitigation guidance and additional details are available in the advisory referenced at https://github.com/0xBS0D27/CVE-2025-56643, published on 2025-11-18.