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Koollab LMS EUVDEUVD-2026-50125

| CVE-2026-63230 CRITICAL
SQL Injection (CWE-89)
2026-07-29 CSA GHSA-7j7j-vvxx-737q
9.1
CVSS 3.1 · Vendor: CSA
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Send malicious SQL payload to SCORM report endpoint
  2. Exploit
    Trigger SQL injection in unsanitized input
  3. Execution
    Extract database contents including credentials and tokens
  4. Impact
    Use credentials/JWT tokens to hijack user accounts

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Parameterized queries, prepared statements
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Persistence

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

The SCORM report endpoint must be reachable over the network; the vulnerability is exploitable without authentication, so no user interaction or prior access is needed. No specific configuration is required beyond the default deployment that exposes the endpoint-no feature enablement or non-default settings are mentioned.

Impact

The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) indicates a network-exploitable, low-complexity attack with no privileges or user interaction, leading to high confidentiality and integrity impacts but no availability impact. No EPSS score is available, so the probability of exploitation cannot be quantified; no KEV listing means active exploitation is not confirmed. No POC code has been reported. Using SSVC, the vulnerability is in the “exploitation: none” state given absence of known exploitation, but the high technical impact and automatable nature (SQL injection) increase urgency. However, the real-world risk depends heavily on the exposure of the SCORM report endpoint; if restricted to internal networks or disabled, risk is significantly lower. Despite the high CVSS, the lack of evidence of exploitation and unknown patch availability may moderate immediate priority compared to actively exploited flaws.

Exploit ScenarioDerived

An attacker sends a crafted HTTP request to the publicly accessible SCORM report endpoint of a Koollab LMS instance, injecting SQL syntax that triggers database errors revealing schema information. After mapping the database structure, the attacker uses error-based extraction to dump tables containing user passwords and JWT secrets. With the obtained credentials or tokens, they hijack administrator sessions and take full control of the LMS and its user data.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 29, 2026

Error-based SQL injection in Koollab LMS allows unauthenticated attackers to exfiltrate sensitive database contents, including user credentials and JWT tokens that may enable account takeover. The vulnerability, reported through Singapore’s CSA, affects the SCORM report endpoint and does not require prior authentication. No public exploit code or active exploitation data (KEV, EPSS) has been observed at the time of analysis, but the high CVSS score and low attack complexity make it a serious risk if the endpoint is exposed.

RemediationAI

Apply the vendor-provided patch once available; the CSA advisory does not list a fixed version, so monitor vendor communications from Three Learning for updates. As a compensating control, restrict network access to the SCORM report endpoint to trusted hosts only, or disable the feature if not required for operations. Deploy a web application firewall (WAF) rule to detect and block SQL injection patterns targeting the endpoint. Note that disabling the endpoint may break SCORM reporting functionality, and WAF rules may be bypassed if the injection is obfuscated.

Affected VersionsENISA

Koollab LMS 5.3.2

Affected Packages

euvd koollab_lms no fix

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.

Technical ContextAI · show details

The vulnerability resides in the SCORM report feature of Koollab LMS, a learning management system by Three Learning. The root cause is an error-based SQL injection (CWE not provided) in the endpoint that handles SCORM-related reporting, where user-supplied input is not properly sanitized before being used in SQL queries. The CPE cpe:2.3:a:three_learning:koollab_lms:*:*:*:*:*:*:*:* indicates all versions are potentially affected. The attack exploits database error messages to retrieve data, and because the endpoint is accessible without authentication, an attacker can execute arbitrary SQL queries to extract sensitive information.

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Severity by source

Vendor (CSA) PRIMARY 9.1 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
vuln.today AI 9.1 CRITICAL

Unauthenticated SQL injection allows high confidential data exposure and integrity impact from token misuse.

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

Primary rating from Vendor (CSA).

CVSS VectorVendor: CSA

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

DescriptionCVE.org

A pre-authentication error-based SQL injection vulnerability in Koollab LMS allowed an unauthenticated attacker to read sensitive database contents, including personally identifiable information, credentials, and valid JWT tokens that may enable account takeover, via the SCORM report endpoint.

Threat Intelligence Overview

EPSS Score
0.3%
Top 79% exploitable
Prevalence
Low
niche LMS product, limited enterprise footprint
Threat Intel
1
1 sources
Data Quality
5 sources
Confidence: Medium

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.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact· derived
Medium
Technical Impact
Total

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

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

CVE-2026-63229 CRITICAL
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Blind SQL injection in Koollab LMS enables unauthenticated attackers to exfiltrate sensitive database contents, includin

CVE-2026-63231 HIGH
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CVE-2026-63238 MEDIUM
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An authentication bypass in Koollab LMS allows unauthenticated attackers to take over any account, including administrat

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4.8 Jul 29

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

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

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

CVE-2026-63235 LOW
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Forced session termination via the login kickout endpoint in Koollab LMS allows unauthenticated attackers to deny servic

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