CVE-2026-63228

Unrestricted image upload vulnerability

Published Jul 29, 2026 CVSS 3.1 · 2.6 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-434
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Three Learning
Three Learning koollab Lms
Vendors & Products Three Learning
Three Learning koollab Lms
Type Values Removed Values Added
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.
Title Unrestricted image upload vulnerability
References
Metrics cvssV3_1

{'score': 2.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CSA
Published
Updated
Jul 29, 2026, 3:23 PM
Reserved
Jul 16, 2026, 2:33 AM
Status
Deferred
Published
Jul 29, 2026, 7:16 AM
Modified
Oct 23, 2026, 11:10 PM