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Advisories

Capgo - Account Takeover via Cross-Domain SSO Email Assertion in provision-user

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severity
high
date
Affecting

  • Capgo >= 0, < 12.128.2

CWE
  • CWE-287 Improper Authentication
CVSS
9.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Credit
offset
Description
Capgo before 12.128.2 contains a cross-domain SSO account takeover vulnerability in the provision-user endpoint that allows attackers to merge arbitrary victim accounts based on email match without validating SSO provider domain authorization. An attacker with enterprise org admin access and a malicious IdP can forge SAML assertions containing victim email addresses to trigger account merge and gain full access to victim accounts, organizations, and data.

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