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CVE-2026-94383— MISP Blocklist Workflow Module: Arbitrary Script Execution via Unrestricted File Extension

一分钟漏洞结论

影响对象
MISP MISP
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。

The MISP blocklist workflow module accepted a user-supplied blocklist filename parameter without validating the file extension. The only sanitization applied was basename() to strip path components and a check for empty or dot values. A site administrator coul

CVSS 8.6 · High EPSS 0.33% · P26

影响版本矩阵 1

厂商产品 版本范围状态
MISP MISP < 2.5.47 affected
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一、 漏洞 CVE-2026-94383 基础信息

漏洞信息

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Vulnerability Title
MISP Blocklist Workflow Module: Arbitrary Script Execution via Unrestricted File Extension
来源: CVE Program / CVE List V5
Vulnerability Description
The MISP blocklist workflow module accepted a user-supplied blocklist filename parameter without validating the file extension. The only sanitization applied was basename() to strip path components and a check for empty or dot values. A site administrator could specify a filename with an arbitrary extension that would be placed in the MISP export directory. If the underlying web server is configured to interpret and execute scripts from that directory, the resulting file could be invoked, leading to arbitrary code execution in the context of the web server process. The vulnerability requires the attacker to hold site-administrator privileges within MISP, as the blocklist workflow module is restricted to that role. No additional user interaction is required beyond triggering the workflow action with a crafted filename parameter. The impact is full compromise of the MISP server's confidentiality, integrity, and availability, as arbitrary script execution grants the attacker the same privileges as the web server user. Version affected: <2.5.47
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
MISP MISP 0 ~ 2.5.47 -

二、漏洞 CVE-2026-94383 的公开POC

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三、漏洞 CVE-2026-94383 的情报信息

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CVE-2026-94383 补丁与修复 (1)

同批安全公告 · MISP · 2026-09-21 · 共 11 条

CVE-2026-94381 8.7 HIGH MISP Privilege Escalation: Read-Only API Key User Can Regain Full Role via updateLoginTime
CVE-2026-94401 8.3 HIGH MISP Arbitrary Local File Read and SSRF via MISP Export Upload
CVE-2026-94374 8.3 HIGH MISP: IDOR via Client-Supplied Report ID in Module Results Processing Allows Reparenting a
CVE-2026-94404 7.1 HIGH MISP CSRF vulnerability allows unauthorized attribute modification
CVE-2026-94379 6.9 MEDIUM MISP: HTTP Method Bypass of Login Security Controls (Bruteforce Protection and Email OTP)
CVE-2026-94393 6.4 MEDIUM MISP Event Report Cross-Event Reparenting via Unscoped UUID Resolution in editReport
CVE-2026-94277 6.3 MEDIUM MISP Galaxy Matrix 存储型跨站脚本漏洞
CVE-2026-94372 6.3 MEDIUM Stored Cross-Site Scripting via Unescaped Galaxy Cluster Tag Names in MISP Default Theme G
CVE-2026-94394 6.3 MEDIUM MISP ObjectReferencesController: Granular Distribution and Sharing Group Restrictions Bypa
CVE-2026-94373 6.3 MEDIUM MISP DOM-based Cross-Site Scripting via innerHTML in Contextual Menu

IV. Related Vulnerabilities

Same product: MISP
Same vendor: MISP
Same weakness: CWE-434

V. Comments for CVE-2026-94383

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