CVE-2026-34748

@payloadcms/next has Stored XSS in Admin Panel

State: Published
Severity: 8.7 High
Published: Apr 1, 2026
Updated: Apr 2, 2026
Reserved: Mar 30, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	8.7 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
payloadpayloadcms	< 3.78.0Affected

References

https://github.com/payloadcms/payload/security/advisories/GHSA-mmxc-95ch-2j7c

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