What’s Vulnerable › Vulnerabilities

CVE-2026-63240: Information disclosure vulnerability

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-29 · updated 2026-10-23
• Weakness: CWE-200

Description

An information disclosure vulnerability in Koollab LMS allowed an authenticated learner to obtain correct quiz answers from the course status endpoint without completing the assessment legitimately, compromising the integrity of assessments.

Affected products

• Three Learning Koollab LMS: 5.3.2

References

• https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-094/

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