Stored Cross-Site Scripting (XSS) Vulnerability

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Summary

CVECVE-2026-3007
StatePUBLISHED
AssignerCSA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-23 04:16:07 UTC
Updated2026-04-23 04:16:07 UTC
DescriptionSuccessful 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.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

VersionSourceTypeScoreSeverityVector
3.15f57b9bf-260d-4433-bf07-b6a79e9bb7d4Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.1CNACVSS5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Three Learning Koollab Learning Management System affected 5.3.2. Not specified

References

ReferenceSourceLinkTags
www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-042 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4 www.csa.gov.sg
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Justin Ng (en)

Additional Advisory Data

Solutions

CNA: Users and administrators of the affected product version are advised to update to the latest version 5.4.0 immediately.

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