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Koollab Lms EUVDEUVD-2026-50132

| CVE-2026-63237 MEDIUM
Improper Verification of Cryptographic Signature (CWE-347)
2026-07-29 CSA GHSA-8j44-5653-q846
4.8
CVSS 3.1 · Vendor: CSA
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Severity by source

Vendor (CSA) PRIMARY
4.8 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Primary rating from Vendor (CSA) · only source for this CVE.

CVSS VectorVendor: CSA

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

1
Analysis Generated
Jul 29, 2026 - 07:04 vuln.today

DescriptionCVE.org

A TOTP two-factor authentication bypass vulnerability in Koollab LMS allowed an attacker to supply a client-controlled seed to generate a matching one-time password and bypass the second authentication factor, potentially enabling unauthorised access to administrator accounts.

AnalysisAI

Two-factor authentication bypass in Koollab LMS allows attackers to supply a client-controlled TOTP seed and generate a valid one-time password, bypassing the second authentication factor. This can lead to unauthorized access to administrator accounts if TOTP is enabled. …

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CVE-2026-63227 CRITICAL
9.9 Jul 29

Arbitrary file upload and remote code execution in Koollab LMS allows an authenticated module designer to achieve full s

CVE-2026-63234 CRITICAL
9.9 Jul 29

Remote code execution in Koollab LMS 5.3.2 lets an authenticated attacker chain SQL injection (CWE-89) and PHP object in

CVE-2026-63233 CRITICAL
9.9 Jul 29

Remote code execution in Koollab LMS allows authenticated attackers to chain SQL injection with unsafe deserialization,

CVE-2026-63232 CRITICAL
9.9 Jul 29

Remote code execution in Koollab LMS allows authenticated attackers to exploit SQL injection and unsafe deserialization

CVE-2026-63230 CRITICAL
9.1 Jul 29

Error-based SQL injection in Koollab LMS allows unauthenticated attackers to exfiltrate sensitive database contents, inc

CVE-2026-63229 CRITICAL
9.1 Jul 29

Blind SQL injection in Koollab LMS enables unauthenticated attackers to exfiltrate sensitive database contents, includin

CVE-2026-63231 HIGH
8.1 Jul 29

Error-based SQL injection in Koollab LMS 5.3.2 lets an authenticated attacker abuse the face-to-face runs update endpoin

CVE-2026-63238 MEDIUM
6.5 Jul 29

An authentication bypass in Koollab LMS allows unauthenticated attackers to take over any account, including administrat

CVE-2026-63239 MEDIUM
5.4 Jul 29

Exposure of hard-coded AWS IAM credentials in Koollab LMS 5.3.2 allows authenticated attackers with low privileges to ac

CVE-2026-63240 MEDIUM
4.3 Jul 29

Koollab LMS 5.3.2 exposes correct quiz answers through the course status endpoint to authenticated learners without requ

CVE-2026-63242 MEDIUM
4.3 Jul 29

Integrity compromise in Koollab LMS allows authenticated learners to falsify lesson completion records via the SCORM com

CVE-2026-63235 LOW
3.7 Jul 29

Forced session termination via the login kickout endpoint in Koollab LMS allows unauthenticated attackers to deny servic

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EUVD-2026-50132 vulnerability details – vuln.today

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