What’s Vulnerable › Vulnerabilities

CVE-2026-63228: Unrestricted image upload vulnerability

• Severity: low (CVSS 2.6 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: 2026-07-29 · updated 2026-10-23
• Weakness: CWE-434

Description

An unrestricted image upload vulnerability in Koollab LMS allowed an authenticated attacker to upload malicious content disguised as an image file via the feedback mail registration endpoint, potentially enabling further attacks on the server.

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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