What is CVE-2026-34748?

CVE-2026-34748 is a high-severity vulnerability in Payloadcms Payload, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-04-01.

How severe is CVE-2026-34748?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Payloadcms Payload

CVE-2026-34748

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 c…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (2.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Payloadcms Payload — versions < 3.78.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2026-34748?: CVE-2026-34748 is a high-severity vulnerability in Payloadcms Payload, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-04-01.
How severe is CVE-2026-34748?: High severity. CVSS v3 base score is 8.7 out of 10.