Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N N P N L N 5.3 .0020 9.7 —
AFFECTED Product Versions Fixed cal.diy unspecified —
TIMELINE Jul 18 Reserved by VulnCheck Jul 20 Published (CNA: VulnCheck) Jul 21 EXPLOIT PUBLISHED — CVE-2026-63768 (calcom cal.diy). Public exploit reference added.
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.
| Date | Event | Detail |
|---|---|---|
| July 18, 2026 | Reserved | Reserved by VulnCheck |
| July 20, 2026 | Published | Published (CNA: VulnCheck) |
| July 21, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-63768 (calcom cal.diy). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| calcom | cal.diy | — | — | — |
Authoritative record: CVE-2026-63768 at cve.org
Vendors: calcom
Weaknesses: CWE-601
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-63768 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.