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Advisories

Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking

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severity
critical
date
Affecting

  • pingvin-share-x >= 0.19.0, < 1.22.0

CWE
  • CWE-287 Improper Authentication
CVSS
9.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Matéo Florian Callec
Description
Pingvin Share X from 0.19.0 before 1.22.0 contains an improper authentication vulnerability that allows remote unauthenticated attackers to take over accounts by abusing automatic OAuth email linking in OAuthService.signUp(). Attackers can register a victim's unverified email on an enabled OAuth/OIDC provider, exploiting the missing email_verified check in GenericOidcProvider, to sign in as the victim including administrators while bypassing TOTP.

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