CVE-2026-9303CWE-352CWE-862

calcom cal.diy cross-site request forgery

Medium · published May 23, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
13.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
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/E:P
EPSS
0.00230 · 13.0th percentile
Weaknesses
CWE-352 · Cross-Site Request Forgery (CSRF); CWE-862 · Missing Authorization
Published
2026-05-23T13:30Z
EPSS history
Timeline
  • 23 MAY 13:30Z
    calcom cal.diy cross-site request forgery
    cvelistv5