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CVE-2025-42620— CSRF vulnerability in CIRCL Vulnerability-Lookup

Quick assessment

Affected
CIRCL Vulnerability-Lookup
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.

Vulnerability-Lookup是Vulnerability-Lookup开源的一个管理披露漏洞的平台。 Vulnerability-Lookup 2.18.0之前版本存在安全漏洞，该漏洞源于未安全处理用户控制内容，可能导致存储型跨站脚本攻击。

AI Predicted 6.1 Difficulty: Easy EPSS 0.29% · P21

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-42620

Vulnerability Information
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Vulnerability Title
CSRF vulnerability in CIRCL Vulnerability-Lookup
Source: CVE Program / CVE List V5
Vulnerability Description
In affected versions, vulnerability-lookup handled user-controlled content in comments and bundles in an unsafe way, which could lead to stored Cross-Site Scripting (XSS). On the backend, the related_vulnerabilities field of bundles accepted arbitrary strings without format validation or proper sanitization. On the frontend, comment and bundle descriptions were converted from Markdown to HTML and then injected directly into the DOM using string templates and innerHTML. This combination allowed an attacker who could create or edit comments or bundles to store crafted HTML/JavaScript payloads which would later be rendered and executed in the browser of any user visiting the affected profile page (user.html).  This issue affects Vulnerability-Lookup: before 2.18.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H
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
Vulnerability-Lookup 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vulnerability-Lookup是Vulnerability-Lookup开源的一个管理披露漏洞的平台。 Vulnerability-Lookup 2.18.0之前版本存在安全漏洞，该漏洞源于未安全处理用户控制内容，可能导致存储型跨站脚本攻击。
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
CIRCL Vulnerability-Lookup 0 ~ 2.18.0 -

II. Public POCs for CVE-2025-42620

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III. Intelligence Information for CVE-2025-42620

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Other References for CVE-2025-42620 (1)

Same Patch Batch · CIRCL · 2025-12-08 · 3 CVEs total

CVE-2025-42615 Improper Restriction of Excessive Authentication Attempts vulnerability in CIRCL Vulnerabi
CVE-2025-42616 CSRF vulnerability in CIRCL Vulnerability-Lookup

IV. Related Vulnerabilities

Same product: Vulnerability-Lookup
Same vendor: CIRCL
Same weakness: CWE-79