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Koollab LMS EUVDEUVD-2026-50137

| CVE-2026-63242 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-07-29 CSA GHSA-qqq4-m483-fm7p
4.3
CVSS 3.1 · Vendor: CSA
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Severity by source

Vendor (CSA) PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
vuln.today AI
4.3 MEDIUM

Requires authenticated access (PR:L), network exploit, low integrity impact only.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (CSA).

CVSS VectorVendor: CSA

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

Lifecycle Timeline

1
Analysis Generated
Jul 29, 2026 - 07:05 vuln.today

DescriptionCVE.org

A business logic vulnerability in Koollab LMS allowed an authenticated learner to set their lesson completion status to completed via the SCORM commit endpoint without viewing the lesson material, compromising training and completion records.

AnalysisAI

Integrity compromise in Koollab LMS allows authenticated learners to falsify lesson completion records via the SCORM commit endpoint without viewing material. Affects version 5.3.2, compromising training and compliance records. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate as learner
Exploit
Send crafted request to SCORM commit endpoint
Execution
Bypass material viewing requirement
Impact
Falsify lesson completion record

Vulnerability AssessmentAI

Exploitation Requires an authenticated learner account with access to the SCORM commit endpoint. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) yields a base score of 4.3 (Medium). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated learner sends a crafted HTTP request to the SCORM commit endpoint with a completion status parameter, bypassing client-side tracking. The server accepts the request and marks the lesson complete, falsely recording training progress. …
Remediation No vendor-released patch has been identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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-2026-63237 MEDIUM
4.8 Jul 29

Two-factor authentication bypass in Koollab LMS allows attackers to supply a client-controlled TOTP seed and generate a

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-2026-63235 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-2026-50137 vulnerability details – vuln.today

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