CVE-2026-63231
Deferred Deferred - Pending Action

Post-Auth SQL Injection in Koollab LMS

Publication date: 2026-07-29

Last updated on: 2026-07-29

Assigner: CSA

Description
A post-authentication SQL injection vulnerability in Koollab LMS allowed an authenticated attacker to use an error-based SQL oracle via the face-to-face runs update endpoint to read the entire application database and obtain valid JWT tokens for account takeover.

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Meta Information

Published
2026-07-29
Last Modified
2026-07-29
Generated
2026-08-18
AI Q&A
2026-07-29
EPSS Evaluated
2026-08-17
NVD
CVE-2026-63231
EUVD
EUVD-2026-50126

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
koollab lms *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Attack-Flow Graph

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Executive Summary

This is a post-authentication SQL injection vulnerability in Koollab LMS. An attacker with valid credentials can exploit an error-based SQL oracle through the face-to-face runs update endpoint to read the entire application database and steal valid JWT tokens for account takeover.

Detection Guidance

This vulnerability requires authentication and involves SQL injection via the face-to-face runs update endpoint. To detect it, inspect HTTP requests to this endpoint for unusual SQL syntax or error messages. Monitor database logs for suspicious queries or errors. Use tools like SQLmap with authenticated session tokens to test for injection points.

Impact Analysis

An attacker could access sensitive data stored in the database, such as user credentials or personal information. They could also hijack user accounts by obtaining valid JWT tokens, leading to unauthorized access and potential data breaches.

Compliance Impact

This vulnerability could lead to unauthorized data access, violating GDPR's data protection principles and HIPAA's security requirements. It may result in non-compliance, legal penalties, and reputational damage due to data exposure.

Mitigation Strategies

Apply the latest security patches or updates for Koollab LMS immediately. Disable or restrict access to the face-to-face runs update endpoint until patched. Review database access logs for unusual queries or errors. Rotate all JWT tokens and credentials to prevent account takeover.

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