CVE-2026-73157— cti-transmute Remote MISP Event Browser Allows Cross-Site Scripting via Malicious Event Metadata
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，该漏洞源于使用HTML插值将远程MISP实例获取的数据渲染到事件浏览器界面，可能导致恶意或受感染的远程实例通过返回特制值向cti-transmute界面注入HTML或脚本内容。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MISP | cti-transmute | ≤ 1.4.0 |
affected |
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I. Basic Information for CVE-2026-73157
Vulnerability Information
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Vulnerability Title
cti-transmute Remote MISP Event Browser Allows Cross-Site Scripting via Malicious Event Metadata
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of cti-transmute render data obtained from a remote MISP instance into the event-browser interface using HTML interpolation. Because fields such as event IDs, event information, organization names, tags, tag colors, TLP labels, distribution labels, and error/flash text may be controlled by the remote MISP server, a malicious or compromised remote instance could return crafted values that inject HTML or script-capable content into the cti-transmute interface.
The patch explicitly notes that remote-derived values must not reach innerHTML, and replaces string-built rows and badges with DOM nodes populated through textContent. It also restricts remote-controlled tag colors to six-digit hexadecimal values, preventing malicious CSS values such as url(...).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/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 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，该漏洞源于使用HTML插值将远程MISP实例获取的数据渲染到事件浏览器界面，可能导致恶意或受感染的远程实例通过返回特制值向cti-transmute界面注入HTML或脚本内容。
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-2026-73157
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-73157 (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-2026-73161 | 5.1 MEDIUM | cti-transmute Conversion Table Allows XSS via Unescaped Cell Content During Search Highlig |
IV. Related Vulnerabilities
Same product: cti-transmute
-
CVE-2026-73162
cti-transmute CSRF Allows Unauthorized Follow and Notificati -
CVE-2026-73161
cti-transmute Conversion Table Allows XSS via Unescaped Cell -
CVE-2026-73160
cti-transmute Unauthenticated SSRF via Hostnames Resolving t -
CVE-2026-73159
cti-transmute Stored XSS via Crafted Tag Icon on Admin Triag -
CVE-2026-73158
cti-transmute Saved Graph Configuration Allows Stored Cross-
Same vendor: MISP
-
CVE-2026-112991
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CVE-2026-112192
MISP Module Settings Expose Redacted Values and Allow API Mo -
CVE-2026-112188
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CVE-2026-112184
MISP Workflow Module: Reflected XSS via Unescaped misp-modul -
CVE-2026-112183
MISP CSS Injection via Remote Tag Colour in Event Preview
Same weakness: CWE-79
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CVE-2026-116206
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CVE-2026-116203
YesWiki before 4.7.0 Stored XSS via filtertags Action Parame -
CVE-2026-116202
YesWiki before 4.7.0 Stored XSS via ImageField SVG Upload -
CVE-2026-116169
SiYuan 2.10.0 before 3.8.7 Stored XSS via KaTeX \href in Mat -
CVE-2026-116167
SiYuan 2.9.0 before 3.8.7 XSS via check-auth to Parameter