CVE-2026-9303
calcom cal.diy cross-site request forgery
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.
INFO
Published Date :
May 23, 2026, 1:30 p.m.
Last Modified :
May 23, 2026, 1:30 p.m.
Remotely Exploit :
No
Source :
VulDB
Affected Products
The following products are affected by CVE-2026-9303
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Implement anti-CSRF tokens.
- Update cal.diy to the latest version.
- Validate all user inputs.
- Review application security settings.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9303 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-9303 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
May. 23, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CWE CWE-352 Added CWE CWE-862 Added Reference https://gist.github.com/YLChen-007/26663d9558e15994176dc420d2e11d48 Added Reference https://gist.github.com/YLChen-007/dafada36e356bc895b09829d8ec57e49 Added Reference https://vuldb.com/submit/812173 Added Reference https://vuldb.com/submit/812175 Added Reference https://vuldb.com/vuln/365250 Added Reference https://vuldb.com/vuln/365250/cti