CVE-2026-71502— MISP cti-transmute 代码注入漏洞
一分钟漏洞结论
影响对象
misp cti-transmute
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
MISP cti-transmute是MISP组织的一款威胁情报数据格式转换工具。 MISP cti-transmute 1.4.0及之前版本存在安全漏洞，该漏洞源于对服务器渲染的用户控制数据中的Vue模板表达式分隔符中和不当，可能导致未经身份验证的攻击者利用[[ ... ]]分隔符创建包含恶意Vue表达式的公共转换，执行任意JavaScript，访问敏感信息或执行认证操作。
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| misp | cti-transmute | ≤ 1.4.0 |
affected |
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一、 漏洞 CVE-2026-71502 基础信息
漏洞信息
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Vulnerability Title
Unauthenticated Stored Vue Template Injection Leads to Cross-Site Scripting in CTI-Transmute
来源: CVE Program / CVE List V5
Vulnerability Description
CTI-Transmute contains a stored cross-site scripting vulnerability caused by insufficient neutralization of Vue template expression delimiters in server-rendered user-controlled data.
An unauthenticated attacker can create a public conversion whose name or description contains a malicious Vue expression using the application's configured [[ ... ]] delimiters. User profile names may provide an additional injection vector. Although Jinja HTML escaping is applied, the resulting value is subsequently included in a DOM region compiled by Vue.
Vue interprets the attacker-controlled value as a template expression rather than ordinary text. By accessing the JavaScript Function constructor from within the expression, an attacker can execute arbitrary JavaScript in the security context of the CTI-Transmute origin. The application's nonce-based Content Security Policy does not prevent exploitation because the Vue runtime compiler requires the unsafe-eval policy exception.
The malicious payload is stored by the application and executed whenever another user opens an affected page, such as the public conversion detail page. The victim may be a normal user or an administrator. Successful exploitation could allow the attacker to:
* Access data available to the victim through the application.
* Extract API keys, tokens, or other sensitive information exposed to the page.
* Perform authenticated actions using the victim's session.
* Modify conversions or other application data.
* Escalate the impact by targeting an administrator.
A demonstrated payload can use [].constructor.constructor(...) to obtain the JavaScript Function constructor and execute arbitrary code. The regression tests also show that a short first-stage payload could retrieve an uncapped conversion description and evaluate a larger second-stage payload.
The patch addresses the vulnerability by registering a global Jinja finalize hook that inserts a zero-width Unicode word joiner inside every Vue delimiter found in server-rendered values. This prevents Vue from recognizing the values as template expressions while preserving their visible representation.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
来源: CVE Program / CVE List V5
Vulnerability Title
MISP cti-transmute 代码注入漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
MISP cti-transmute是MISP组织的一款威胁情报数据格式转换工具。 MISP cti-transmute 1.4.0及之前版本存在安全漏洞，该漏洞源于对服务器渲染的用户控制数据中的Vue模板表达式分隔符中和不当，可能导致未经身份验证的攻击者利用[[ ... ]]分隔符创建包含恶意Vue表达式的公共转换，执行任意JavaScript，访问敏感信息或执行认证操作。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| misp | cti-transmute | 0 ~ 1.4.0 | - |
|
二、漏洞 CVE-2026-71502 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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