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CVE-2026-73156— cti-transmute Sunburst and Treemap Tooltips Allow Cross-Site Scripting via Crafted Conversion Data

Quick assessment

Affected
MISP cti-transmute
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.

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及之前版本存在跨站脚本漏洞，该漏洞源于ECharts Sunburst和Treemap工具提示格式化程序未对攻击者控制的值进行HTML转义，可能导致攻击者注入标记或脚本内容，当其他用户查看可视化并悬停在受影响切片上时执行。

CVSS 5.3 · Medium EPSS 0.44% · P39

Affected Version Matrix 1

VendorProduct Version RangeStatus
MISP cti-transmute ≤ 1.4.0 affected
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I. Basic Information for CVE-2026-73156

Vulnerability Information
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Vulnerability Title
cti-transmute Sunburst and Treemap Tooltips Allow Cross-Site Scripting via Crafted Conversion Data
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of cti-transmute fail to HTML-escape attacker-controlled values used in ECharts Sunburst and Treemap tooltip formatters. Slice names may originate directly from STIX or MISP data, including STIX types, relationship_type, pattern prefixes, and MISP category/type values. Since ECharts interprets the formatter return value as HTML, crafted values can inject markup or script-capable content into the tooltip. An attacker who can cause malicious conversion data to be processed can therefore inject content that executes when another user views the visualization and hovers over the affected slice. The patch replaces direct interpolation with dedicated formatter functions that call escapeHtml() on p.name, p.data.value, and p.value.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Source: 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)
Source: CVE Program / CVE List V5
Vulnerability Title
MISP cti-transmute 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
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及之前版本存在跨站脚本漏洞，该漏洞源于ECharts Sunburst和Treemap工具提示格式化程序未对攻击者控制的值进行HTML转义，可能导致攻击者注入标记或脚本内容，当其他用户查看可视化并悬停在受影响切片上时执行。
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
MISP cti-transmute 0 ~ 1.4.0 -

II. Public POCs for CVE-2026-73156

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III. Intelligence Information for CVE-2026-73156

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Patches & Fixes for CVE-2026-73156 (1)

Same Patch Batch · MISP · 2026-08-11 · 9 CVEs total

CVE-2026-73160 8.7 HIGH cti-transmute Unauthenticated SSRF via Hostnames Resolving to Internal IP Addresses
CVE-2026-73155 5.3 MEDIUM cti-transmute Missing Authorization Allows Reactions to Private Comments
CVE-2026-73140 5.3 MEDIUM cti-transmute Evaluation Report Exports Expose Private Comments and Author Information
CVE-2026-73162 5.3 MEDIUM cti-transmute CSRF Allows Unauthorized Follow and Notification State Changes
CVE-2026-73158 5.1 MEDIUM cti-transmute Saved Graph Configuration Allows Stored Cross-Site Scripting via svgIcon
CVE-2026-73159 5.1 MEDIUM cti-transmute Stored XSS via Crafted Tag Icon on Admin Triage Interface
CVE-2026-73161 5.1 MEDIUM cti-transmute Conversion Table Allows XSS via Unescaped Cell Content During Search Highlig
CVE-2026-73157 2.3 LOW cti-transmute Remote MISP Event Browser Allows Cross-Site Scripting via Malicious Event Me

IV. Related Vulnerabilities

Same product: cti-transmute
Same vendor: MISP
Same weakness: CWE-79