CVE-2026-34748CWE-79

@payloadcms/next has Stored XSS in Admin Panel

High · published April 1, 2026

CVSS v3.1
8.7
EPSS
0%
Percentile
28.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00361 · 28.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-01T19:48Z
EPSS history
Timeline
  • 01 APR 19:48Z
    @payloadcms/next has Stored XSS in Admin Panel
    cvelistv5