CVE-2026-105857

LOWCVSS 10.0 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Payload is a free and open source headless content management system. In @payloadcms/plugin-form-builder versions before 3.90.0 and canary versions before 4.0.0-canary.34, an attacker can craft a form submission that executes code remotely on the server. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-94CWE-1321

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Full discourse1 post

Upwind Security MDR@UpwindMDR1d
🚨Critical - Payload Form Builder Plugin Unauthenticated Form Submission RCE (CVE-2026-105857) @payloadcms/plugin-form-builder mishandles crafted form submission payloads, allowing attackers to trigger server-side code execution during submission processing. Exploitation leads to full Remote Code Execution (RCE) on the Payload server. Non-form-builder Payload installs are not affected. 👉Affected: @payloadcms/plugin-form-builder < 3.90.0 and < 4.0.0-canary.34 | Upgrade to 3.90.0 / 4.0.0-canary.34
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