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Advisories

Rybbit Reflects Any Origin in CORS Responses While Allowing Credentials

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severity
high
date
Affecting

  • rybbit >= 0, < 2.7.0

CWE
  • CWE-942 Permissive Cross-domain Security Policy with Untrusted Domains
CVSS
8.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
George Chen
Description
Rybbit before 2.7.0 contains a CORS misconfiguration vulnerability that allows attackers to bypass origin restrictions by reflecting any request origin in Access-Control-Allow-Origin responses while credentials are enabled. Attackers can issue credentialed cross-origin requests from any website to read analytics data, account information, and perform authenticated state-changing operations as the victim user.

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