CVE-2025-9485
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk47th percentile - higher than 47% of all known CVEs
Summary
Wtyczka OAuth Single Sign On – SSO (OAuth Client) dla WordPressa jest podatna na niewłaściwą weryfikację podpisu kryptograficznego w wersjach do 6.26.12 włącznie. Problem wynika z niebezpiecznego przetwarzania tokenów JWT bez weryfikacji w funkcji `get_resource_owner_from_id_token`.
Risk Assessment
Atakujący bez uwierzytelnienia mogą obejść proces autoryzacji i uzyskać dostęp do istniejących kont użytkowników, w tym administratorów, lub stworzyć dowolne konta na poziomie subskrybenta.
Recommendation
Zaleca się aktualizację wtyczki do najnowszej wersji, aby usunąć tę podatność oraz wdrożenie dodatkowych środków zabezpieczających w celu ochrony kont użytkowników.
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Original NVD description (English source)
The OAuth Single Sign On – SSO (OAuth Client) plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in versions up to, and including, 6.26.12. This is due to the plugin performing unsafe JWT token processing without verification or validation in the `get_resource_owner_from_id_token` function. This makes it possible for unauthenticated attackers to bypass authentication and gain access to any existing user account - including administrators in certain configurations - or to create arbitrary subscriber-level accounts.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

