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

Quick assessment

Affected
payloadcms payload
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Payload 是一款免费且开源的无头内容管理系统。在 3.90.0 之前的版本以及 4.0.0-canary.34 之前的 canary 版本中,如果本地上传配置允许上传 XML 文件,则攻击者可以上传一个包含 JavaScript 执行代码的 XML 文件及其样式表。当已登录用户打开该文件时,会在 Payload 源环境中执行 JavaScript 代码。该问题已在 3.90.0 版本和 4.0.0-canary.34 版本中修复。

CVSS 8.6 · High

Affected Version Matrix 2

VendorProduct Version RangeStatus
payloadcms payload < 3.90.0 affected
>= 4.0.0-canary.0, < 4.0.0-canary.34 affected
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I. Basic Information for CVE-2026-105868

Vulnerability Information

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Vulnerability Title
Payload: Uploaded XML files could execute same-origin JavaScript
Source: CVE Program / CVE List V5
Vulnerability Description
Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, local upload configurations that accept XML files can store an XML file and stylesheet that execute JavaScript in the Payload origin when a logged-in user opens the file. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
payloadcms payload < 3.90.0 -

II. Public POCs for CVE-2026-105868

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III. Intelligence Information for CVE-2026-105868

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Other References for CVE-2026-105868 (3)

Same Patch Batch · payloadcms · 2026-10-06 · 29 CVEs total

CVE-2026-105857 10.0 CRITICAL Payload: RCE in Payload Form Builder
CVE-2026-105845 9.8 CRITICAL Payload: SQL Injection in SQLite and Postgres
CVE-2026-105859 9.8 CRITICAL Payload: Unauthorized update to collection documents
CVE-2026-105844 9.3 CRITICAL Payload: Prototype pollution in Payload Import Export plugin
CVE-2026-105851 9.3 CRITICAL Payload: Field access control bypass on auth collections
CVE-2026-105863 9.2 CRITICAL Payload authentication token field handling issue
CVE-2026-105850 8.8 HIGH Payload: Order confirmation validation issue in Payload Ecommerce
CVE-2026-105862 8.7 HIGH Payload: Bypassed sanitization of user uploaded SVGs
CVE-2026-105854 8.7 HIGH Payload: ReDoS in Multipart Content-Type Validation
CVE-2026-105806 8.6 HIGH Payload: Improper access control for MCP API keys
CVE-2026-105856 8.6 HIGH Payload: SQL injection in SQLite/Postgres
CVE-2026-105865 8.1 HIGH Payload: Incomplete validation during the upload file lifecycle
CVE-2026-105858 8.1 HIGH Payload: Remote Code Execution through first-register
CVE-2026-105849 7.7 HIGH Payload: API key disclosure through ordinary document reads
CVE-2026-105855 7.6 HIGH Payload: Field-level password update restrictions were not enforced
CVE-2026-105861 7.2 HIGH Payload external upload trust validation issue
CVE-2026-106100 7.1 HIGH Payload: Field-level write access bypass in Payload on MongoDB
CVE-2026-105867 7.1 HIGH Payload: Client uploads could overwrite S3 objects
CVE-2026-105860 7.1 HIGH Payload: Tenant authorization bypass in Multi-Tenant Plugin
CVE-2026-105847 7.1 HIGH Payload: Polymorphic join queries could disclose hidden fields

Showing top 20 of 29 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

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