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CVE-2023-50714 The Oauth2 PKCE implementation is vulnerable

🗓️ 22 Dec 2023 18:30:03Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 21 Views

Vulnerability in yii2-authclient prior to version 2.2.15. Oauth2 PKCE implementation has two vulnerabilities related to authCodeVerifier and potential downgrade attack. Patch available in version 2.2.15. No workarounds.

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10 Apr 2026 05:06Current
8.5High risk
Vulners AI Score8.5
CVSS 3.16.8
EPSS0.0015
21