CVE-2026-34748 Details
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.
A stored Cross-Site Scripting vulnerability has been identified in the admin panel of Payload CMS versions prior to 3.78.0. This vulnerability allows an authenticated user with write access to a collection to save content that executes in the browser of another user when viewed. The issue has been patched in version 3.78.0.
Users are advised to upgrade to Payload CMS version 3.78.0 or later. If an immediate upgrade is not possible, restrict create and update access to versioned collections to trusted roles only.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/payloadcms/payload/security/advisories/GHSA-mmxc-95ch-2j7c | [email protected] | MitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| payloadcms payload | < 3.78.0 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | Initial Analysis | [email protected] |
| Apr 1, 2026 | New CVE Received | [email protected] |