VULNERABILITY INTELLIGENCE

CVE-2026-63768

CVSS score4.3 MEDIUM
EPSS probability0.34%
CISA KEVNot currently listed
Published2026-07-20
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-601

Primary references