CVE-2026-63768

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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

Configurations

No configuration.

History

20 Jul 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-20 19:17

Updated : 2026-07-23 15:23

NVD link : CVE-2026-63768

Mitre link : CVE-2026-63768

CVE.ORG link : CVE-2026-63768

JSON object : View

Products Affected

No product.

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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