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CVE-2026-9303

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CVE-2026-9303

Published: May 23, 2026

Modified: May 26, 2026

PUBLISHED

CVSS v3.1

4.3

MEDIUM

Description

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.

VendorProductVersions

calcom

cal.diy

affected
4.9.0
affected
4.9.1
affected
4.9.2
affected
4.9.3
affected
4.9.4

Weaknesses (CWE)

CWE-352
CWE-862

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

VDB-365250 | CTI Indicators (IOB, IOC)
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CVE-2026-9303 | MEDIUM (4.3) - Security Vulnerability | QwikSec