Medium 4.3Published May 23, 2026

CVE-2026-9303calcom cal.diy cross-site request forgery

Updated under an hour ago (Oct 26, 2026, 3:30 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for calcom cal.diy

Exploited in the last 30 days

A vulnerability was identified in calcom cal.diy up to 4.9.4. Impacted is an unknown function. The manipulation leads to cross-site request forgery. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
Weakness (CWE): CWE-352, CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: May 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

calcom cal.diy calcom:cal.diy	4.9.0; 4.9.1; 4.9.2; 4.9.3; 4.9.4	CNA record

References

https://vuldb.com/vuln/365250vdb-entry
https://vuldb.com/vuln/365250/ctisignature, permissions-required
https://vuldb.com/submit/812173third-party-advisory
https://vuldb.com/submit/812175third-party-advisory
https://gist.github.com/YLChen-007/26663d9558e15994176dc420d2e11d48related
https://gist.github.com/YLChen-007/dafada36e356bc895b09829d8ec57e49exploit

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.