Paymenter up to 1.4.x Email Update improper authorization

Summaryinfo

A vulnerability, which was classified as problematic, was found in Paymenter up to 1.4.x. The affected element is an unknown function of the component Email Update. The manipulation results in improper authorization. This vulnerability is known as CVE-2026-44584. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Paymenter up to 1.4.x. It has been classified as problematic. Affected is some unknown functionality of the component Email Update. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

Paymenter is a free and open-source webshop solution for management of hosting services. In versions prior to 1.5.0, the email update functionality fails to invalidate the existing verification state when a user changes their email address, allowing a verified account to retain its verified status after switching to an unverified or unowned email address. When a user updated their email address, the system did not reset or revalidate the associated email verification status. As a result, the verification column remained set to “true” even after the email address was changed. Exploitation could potentially result in: misrepresentation of email ownership, bypass of verification-based trust assumptions, and abuse of features gated behind verified status. No direct unauthorized access to other users accounts or data is possible through this issue alone. This issue has been fixed in version 1.5.0.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-44584 since 05/06/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 1.5.0 eliminates this vulnerability.

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Productinfo

Name

• Paymenter

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4

Website

• Product: https://github.com/Paymenter/Paymenter/

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