CVE-2026-63768

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

4.3 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

July 20, 2026

Last Modified

July 20, 2026

CWE ID

CWE-601

Source

NVD

Vendor

calcom

Product

cal.diy

External References

https://github.com/calcom/cal.diy/issues/29679
https://github.com/calcom/cal.diy/pull/29681
https://www.vulncheck.com/advisories/cal-diy-conferencing-oauth-callback-open-redirect-via-unsigned-state

CVE-2026-63768

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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