CVE-2026-34748

Name: CVE-2026-34748
Creator: NVD / NIST
Published: 2026-04-01T20:16:27.04+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2026-34748 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.7/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS Probability

0.29%

20.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Payloadcms	Payload	< 3.78.0

References

https://github.com/payloadcms/payload/security/advisories/GHSA-mmxc-95ch-2j7cMitigation, Vendor Advisory

Timeline

Published: Apr 1, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-34748?

How severe is CVE-2026-34748?

CVE-2026-34748 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2026-34748?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34748?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST