CVE-2026-63768
5.3
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| calcom | cal.diy | 0 <= 6.2.0 | affected |
Weaknesses
- CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
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
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