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OpenAdvisories
High · 8.7 CVE-2026-34748 EUVD-2026-18015GHSA-mmxc-95ch-2j7c

@payloadcms/next has Stored XSS in Admin Panel

Published Apr 1, 2026 · Updated Apr 2, 2026 · Assigned by GitHub_M

Description

Payload is a free and open source headless content management system. Prior to version 3.78.0 in @payloadcms/next, a stored Cross-Site Scripting (XSS) vulnerability existed in the admin panel. An authenticated user with write access to a collection could save content that, when viewed by another user, would execute in their browser. This issue has been patched in version 3.78.0.

Affected products

VendorProductAffectedFixed
payloadcms payload < 3.78.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @payloadcms/next < 3.78.0 3.78.0 GHSA-mmxc-95ch-2j7c

References