CVE-2026-105857 Payload @payloadcms/plugin-form-builder - Remote Code Execution

Payload @payloadcms/plugin-form-builder < 3.90.0 and < 4.0.0-canary.34 contains a remote code execution caused by crafted form submissions, letting attackers execute code remotely on the server, exploit requires crafted form submission.

CVSS base score 10.0 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.43% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-94

Vendor fix

Upgrade to versions 3.90.0 or 4.0.0-canary.34 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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