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Low · 2.6 CVE-2026-63228 EUVD-2026-50123GHSA-7m4m-66m8-f488

Unrestricted image upload vulnerability

Published Jul 29, 2026 · Updated Jul 29, 2026 · Assigned by CSA

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

VendorProductAffectedFixed
Three Learning Koollab LMS 5.3.2 —

References