Advisories

cal.diy 6.2.0 Conferencing OAuth Callback Open Redirect via Unsigned State

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severity
medium
date
Affecting
  • cal.diy <= 6.2.0

CWE
  • CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
George Chen
Description
cal.diy through 6.2.0 contains an open redirect vulnerability in the conferencing OAuth callback endpoint that allows attackers to redirect users to arbitrary URLs by crafting malicious state parameters. Attackers can exploit the unsigned state parameter and onErrorReturnTo field to silently redirect visitors from the trusted domain to attacker-controlled URLs for phishing attacks.

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