Remote Code Execution Vulnerability in Payload CMS Plugin by Payload
CVE-2026-105857

10CRITICAL

Key Information:

Vendor

Payloadcms

Status
Payload
Vendor
CVE Published:
6 October 2026

What is CVE-2026-105857?

The Payload CMS Plugin for form building is affected by a vulnerability that allows an attacker to craft malicious form submissions. This can lead to remote code execution on the server, posing significant security risks. The issue has been addressed in versions 3.90.0 and 4.0.0-canary.34, which mitigate the threat by implementing security measures that prevent unauthorized code execution.

Affected Version(s)

payload < 3.90.0 < 3.90.0

payload >= 4.0.0-canary.0, < 4.0.0-canary.34 < 4.0.0-canary.0, 4.0.0-canary.34

References

https://github.com/payloadcms/payload/security/advisories...
x_refsource_CONFIRM
https://github.com/payloadcms/payload/commit/333b82b9f3e6...
x_refsource_MISC
https://github.com/payloadcms/payload/releases/tag/v3.90.0
x_refsource_MISC

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.