CVE-2026-35571— Emissary has Stored XSS via Navigation Template Link Injection
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I. Basic Information for CVE-2026-35571
Vulnerability Information
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Vulnerability Title
Emissary has Stored XSS via Navigation Template Link Injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
Emissary is a P2P based data-driven workflow engine. Prior to 8.39.0, Mustache navigation templates interpolated configuration-controlled link values directly into href attributes without URL scheme validation. An administrator who could modify the navItems configuration could inject javascript: URIs, enabling stored cross-site scripting (XSS) against other authenticated users viewing the Emissary web interface. This vulnerability is fixed in 8.39.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Emissary 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Emissary是National Security Agency开源的一个分布式 P2P 数据驱动工作流框架。 Emissary 8.39.0之前版本存在跨站脚本漏洞，该漏洞源于Mustache导航模板将配置控制的链接值直接插入href属性而未进行URL方案验证，可能导致能够修改navItems配置的管理员注入javascript: URI，从而对其他经过身份验证的用户实施存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NationalSecurityAgency | emissary | < 8.39.0 | - |
II. Public POCs for CVE-2026-35571
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · NationalSecurityAgency · 2026-04-07 · 4 CVEs total
| CVE-2026-35580 | 9.1 CRITICAL | Emissary has GitHub Actions Shell Injection via Workflow Inputs |
| CVE-2026-35581 | 7.2 HIGH | Emissary has a Command Injection via PLACE_NAME Configuration in Executrix |
| CVE-2026-35583 | 5.3 MEDIUM | Emissary has a Path Traversal via Blacklist Bypass in Configuration API |
IV. Related Vulnerabilities
Same product: emissary
- CVE-2026-35582
Emissary has an OS Command Injection via Unvalidated IN_FILE - CVE-2026-35583
Emissary has a Path Traversal via Blacklist Bypass in Config - CVE-2026-35581
Emissary has a Command Injection via PLACE_NAME Configuratio - CVE-2026-35580
Emissary has GitHub Actions Shell Injection via Workflow Inp - CVE-2025-27508
Emissary Use of a Broken or Risky Cryptographic Algorithm
Same vendor: NationalSecurityAgency
- CVE-2026-35582
Emissary has an OS Command Injection via Unvalidated IN_FILE - CVE-2026-35583
Emissary has a Path Traversal via Blacklist Bypass in Config - CVE-2026-35581
Emissary has a Command Injection via PLACE_NAME Configuratio - CVE-2026-35580
Emissary has GitHub Actions Shell Injection via Workflow Inp - CVE-2025-27508
Emissary Use of a Broken or Risky Cryptographic Algorithm
Same weakness: CWE-79
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Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
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V. Comments for CVE-2026-35571
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