payloadcms/payload · Security
Payload: Uploaded XML files could execute same-origin JavaScript
- GHSA ID
- GHSA-9qpg-3cf8-w33x
- CVE ID
- CVE-2026-105868
- Severity
- high
- Published
- Updated
- CVSS v4
- 8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
Impact
Under certain local upload configurations, an uploaded XML file and stylesheet could execute JavaScript in the Payload origin when a logged-in user opens the file.
You are affected if:
- You accept XML uploads (accepted by default).
Patches
Users should upgrade Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.
Workarounds
Disallow XML/XSL uploads.
CWEs
- CWE-434 · Unrestricted Upload of File with Dangerous Type
References
- https://github.com/payloadcms/payload/security/advisories/GHSA-9qpg-3cf8-w33x ↗
- https://nvd.nist.gov/vuln/detail/CVE-2026-105868 ↗
- https://github.com/payloadcms/payload/commit/a8c3a8e8e2680c96ec4f66f5b3854c5df6c35adf ↗
- https://github.com/payloadcms/payload/releases/tag/v3.90.0 ↗
- https://github.com/advisories/GHSA-9qpg-3cf8-w33x ↗