EUVD-2026-50133
GHSA-2g2j-fq65-5w72
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK
2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Jul 29, 2026
An authentication bypass in Koollab LMS allows unauthenticated attackers to take over any account, including administrator accounts, by supplying a valid user UUID to the 2FA validation endpoint without providing primary credentials. Affected version 5.3.2 (and potentially earlier versions) exposes sensitive data and permits limited modification once an account is compromised. No active exploitation or public exploit code is known at the time of analysis.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Primary rating from Vendor (CSA) · only source for this CVE.
CVSS VectorVendor: CSA
DescriptionCVE.org
An authentication bypass vulnerability in Koollab LMS allowed an unauthenticated attacker to take over any account, including administrator accounts, by supplying a valid user UUID without providing primary credentials via the 2FA validation endpoint.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
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Two-factor authentication bypass in Koollab LMS allows attackers to supply a client-controlled TOTP seed and generate a
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Exploit-DB