polarnl PolarLearn up to 0-PRERELEASE-14 improper authorization

Summaryinfo

A vulnerability, which was classified as critical, has been found in polarnl PolarLearn up to 0-PRERELEASE-14. The affected element is an unknown function. This manipulation causes improper authorization. This vulnerability is tracked as CVE-2026-35610. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in polarnl PolarLearn up to 0-PRERELEASE-14. It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

PolarLearn is a free and open-source learning program. In 0-PRERELEASE-14 and earlier, setCustomPassword(userId, password) and deleteUser(userId) in the account-management module used an inverted admin check. Because of the inverted condition, authenticated non-admin users were allowed to execute both actions, while real admins were rejected. This is a direct privilege-escalation issue in the application.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-35610 since 04/03/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/07/2026). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• polarnl

Name

• PolarLearn

Version

• 0-PRERELEASE-14

Website

• Product: https://github.com/polarnl/PolarLearn/

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