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CVE-2026-73161— cti-transmute Conversion Table Allows XSS via Unescaped Cell Content During Search Highlighting

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，该漏洞源于搜索高亮功能未正确转义转换表中的特殊字符，导致恶意标记可能被解释为HTML而非文本，造成跨站脚本攻击。

CVSS 5.1 · Medium EPSS 0.40% · P34

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
MISP cti-transmute ≤ 1.4.0 affected
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I. Basic Information for CVE-2026-73161

Vulnerability Information
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Vulnerability Title
cti-transmute Conversion Table Allows XSS via Unescaped Cell Content During Search Highlighting
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of cti-transmute improperly handle conversion-table values passed through the search highlighting feature. The highlight() function previously returned the underlying text directly when no search query was supplied, or performed a regex replacement that inserted <mark> tags without first escaping the original content. Because the resulting value is used by an HTML-rendering sink, malicious markup contained in conversion data could be interpreted as HTML rather than displayed as text. The fix introduces a shared highlightMatches() helper that first converts special characters such as <, >, &, and quotes into HTML entities. Only after escaping does the code insert the application-controlled <mark> element used for search highlighting.
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 输出处理不当漏洞
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，该漏洞源于搜索高亮功能未正确转义转换表中的特殊字符，导致恶意标记可能被解释为HTML而非文本，造成跨站脚本攻击。
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
MISP cti-transmute 0 ~ 1.4.0 -

II. Public POCs for CVE-2026-73161

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III. Intelligence Information for CVE-2026-73161

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Patches & Fixes for CVE-2026-73161 (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-2026-73158 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-2026-73157 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