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CVE-2026-73158— cti-transmute Saved Graph Configuration Allows Stored Cross-Site Scripting via svgIcon

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及之前版本存在安全漏洞，该漏洞源于对保存的图形配置数据验证不足，Pivotick将svgIcon解释为HTML，可能导致恶意用户存储特制的svgIcon值，在其他用户浏览器中执行脚本。

CVSS 5.1 · Medium EPSS 0.40% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
MISP cti-transmute ≤ 1.4.0 affected
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I. Basic Information for CVE-2026-73158

Vulnerability Information
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Vulnerability Title
cti-transmute Saved Graph Configuration Allows Stored Cross-Site Scripting via svgIcon
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of cti-transmute insufficiently validate saved graph configuration data. Graph configurations can contain style properties that are later consumed by Pivotick, and Pivotick interprets svgIcon as HTML. Because saved configurations may be created by one user and later displayed to other users—including administrators—a malicious user could store a crafted svgIcon value that executes script in another viewer’s browser. The fix introduces a strict configuration schema on both the server and client. Only known properties are accepted, style entries are limited to shape, color, and size, and dangerous properties such as svgIcon and iconClass are explicitly rejected. Existing stored configurations are also sanitized when listed and again before being applied in the browser.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 输入验证错误漏洞
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及之前版本存在安全漏洞，该漏洞源于对保存的图形配置数据验证不足，Pivotick将svgIcon解释为HTML，可能导致恶意用户存储特制的svgIcon值，在其他用户浏览器中执行脚本。
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-2026-73158

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III. Intelligence Information for CVE-2026-73158

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Patches & Fixes for CVE-2026-73158 (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-2026-73156 5.3 MEDIUM cti-transmute Sunburst and Treemap Tooltips Allow Cross-Site Scripting via Crafted Convers
CVE-2026-73162 5.3 MEDIUM cti-transmute CSRF Allows Unauthorized Follow and Notification State Changes
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