What’s Vulnerable › Vulnerabilities

CVE-2026-3007: Stored Cross-Site Scripting (XSS) Vulnerability

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-23 · updated 2026-10-26
• Weakness: CWE-79

Description

Successful exploitation of the stored cross-site scripting (XSS) vulnerability could allow an attacker to execute arbitrary JavaScript on any user account that has access to Koollab LMS’ courselet feature.

Affected products

• Three Learning Koollab Learning Management System: 5.3.2.

References

• https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-042/

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