Missing Authorization Affecting @delmaredigital/payload-puck package, versions <0.6.23
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published15 Apr 2026
- disclosed7 Apr 2026
- creditUnknown
Introduced: 7 Apr 2026
CVE-2026-39397 (opens in a new tab)How to fix?
Upgrade @delmaredigital/payload-puck to version 0.6.23 or higher.
Overview
@delmaredigital/payload-puck is a Puck visual page builder plugin for Payload CMS
Affected versions of this package are vulnerable to Missing Authorization via the createPuckPlugin function. An attacker can gain unauthorized access to sensitive data and perform unauthorized modifications by sending requests to the /api/puck/* endpoints, as access controls are bypassed.
Note:
This is only exploitable if collections are explicitly registered with the createPuckPlugin process and the targeted endpoints are exposed.
Workaround
This vulnerability can be mitigated by placing a reverse-proxy or middleware authentication check in front of /api/puck/* to require an authenticated session before requests reach the plugin's handlers.