CVE-2026-63228
Low
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.
SeverityLow
CVSS2.6
Exploit probability—
ProductKoollab LMS
PublishedJul 29, 2026
First seenJul 29, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Three Learning Koollab LMS | 5.3.2 | — |
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