Disclosure summary
### 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.
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
GitHub Reviewed Security Advisories · GHSA-9qpg-3cf8-w33x
Open original source · Updated Oct 07, 2026
Payload: Uploaded XML files could execute same-origin JavaScript
Source severity: HIGH / 8.6
| Ecosystem | Package | Affected range | First patched |
|---|---|---|---|
| npm | payload | < 3.90.0 | 3.90.0 |
| npm | payload | >= 4.0.0-canary.0, < 4.0.0-canary.34 | 4.0.0-canary.34 |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Reviewed advisory
PUBLISHED 2026-10-07T16:28:53-04:00
MODIFIED 2026-10-07T16:28:54-04:00
INGESTED 2026-10-08T12:30:39-04:00