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CVE-2026-3007— Stored Cross-Site Scripting (XSS) Vulnerability

Quick assessment

Affected
Three Learning Koollab Learning Management System
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.

Koollab Learning Management System是丹麦Koollab公司的一个支持课程管理、学习跟踪与在线教学的学习管理系统。 Koollab Learning Management System存在安全漏洞，该漏洞源于存储型跨站脚本，攻击者可对访问课程功能的用户账户执行任意JavaScript。

CVSS 5.4 · Medium EPSS 0.23% · P12

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
Three Learning Koollab Learning Management System 5.3.2. affected
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I. Basic Information for CVE-2026-3007

Vulnerability Information
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Vulnerability Title
Stored Cross-Site Scripting (XSS) Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Successful exploitation of the stored cross-site scripting (XSS) vulnerability could allow an attacker to execute arbitrary JavaScript on any user account that has access to Koollab LMS’ courselet feature.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Koollab Learning Management System 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Koollab Learning Management System是丹麦Koollab公司的一个支持课程管理、学习跟踪与在线教学的学习管理系统。 Koollab Learning Management System存在安全漏洞，该漏洞源于存储型跨站脚本，攻击者可对访问课程功能的用户账户执行任意JavaScript。
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
Three Learning Koollab Learning Management System 5.3.2. -

II. Public POCs for CVE-2026-3007

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III. Intelligence Information for CVE-2026-3007

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IV. Related Vulnerabilities

Same vendor: Three Learning

V. Comments for CVE-2026-3007

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