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Advisories

Capgo - Denial of Service in 2FA Email Verification via /auth/v1/otp Endpoint

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severity
medium
date
Affecting

  • Capgo >= 0, < 12.128.2

CWE
  • CWE-703 Improper Check or Handling of Exceptional Conditions
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
Judel777
Description
Capgo before 12.128.2 contains a denial of service vulnerability in the /auth/v1/otp endpoint that prevents email verification for two-factor authentication due to captcha validation failures. Authenticated users cannot complete 2FA enrollment as the backend consistently returns HTTP 500 errors with captcha verification process failed messages, blocking access to security controls.

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