Payload: Bypassed sanitization of user uploaded SVGs
Impact
A malicious SVG file upload could bypass sanitization, be stored, and execute attacker-controlled JavaScript (XSS) after a user downloads it and opens it.
You are affected if:
- You have a collection configured to upload and allow SVG files which can then be downloaded by users.
Patches
The fix validates SVG content on every upload path and hardens SVG/XML delivery so stored SVGs cannot frame attacker content.
Users should upgrade Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.
Workarounds
Disallow SVG uploads, or serve uploaded SVGs as downloads with Content-Disposition: attachment and a strict CSP. These mitigations reduce exposure but do not replace upgrading when the patched release is available.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | payload | < 3.90.0, >= 4.0.0-canary.0, < 4.0.0-canary.34 | 3.90.0, 4.0.0-canary.34 |
Referencias
- https://github.com/payloadcms/payload/security/advisories/GHSA-2pwp-2369-8fg3
- https://nvd.nist.gov/vuln/detail/CVE-2026-105862
- https://github.com/payloadcms/payload/commit/a8c3a8e8e2680c96ec4f66f5b3854c5df6c35adf
- https://github.com/payloadcms/payload
- https://github.com/payloadcms/payload/releases/tag/v3.90.0
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N- Debilidad (CWE)
CWE-434, CWE-79- Plataforma
- npm
- Paquete
payload- Publicada
- 07.10.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-2pwp-2369-8fg3 - CC BY 4.0
Historial de vulnerabilidades: payload
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 29
- Primera → última
- 04.2022 10.2026
- Sin corrección
- 1
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 5
- Alta 13
- Media 11
Divulgaciones por año
- 2022: 1
- 2023: 1
- 2024: 0
- 2025: 2
- 2026: 25
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Payload: Bypassed sanitization of user uploaded SVGs esta entrada
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