CVE-2026-105868: Payload: Uploaded XML files could execute same-origin JavaScript

October 7, 2026

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).

References

github.com/advisories/GHSA-9qpg-3cf8-w33x
github.com/payloadcms/payload/commit/a8c3a8e8e2680c96ec4f66f5b3854c5df6c35adf
github.com/payloadcms/payload/releases/tag/v3.90.0
github.com/payloadcms/payload/security/advisories/GHSA-9qpg-3cf8-w33x
nvd.nist.gov/vuln/detail/CVE-2026-105868

Code Behaviors & Features

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