CVE-2026-94039: VAS3K Taxhacker

High severity, CVSS 7.3. EPSS: 0.5% chance of exploitation in the next 30 days.

A vulnerability was detected in vas3k TaxHacker up to 0.8.5. Affected is the function generateInvoicePDF of the file /apps/invoices/actions.ts of the component Invoice PDF Renderer. Performing a manipulation of the argument businessLogo results in server-side request forgery. The attack is possible to be carried out remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

• VAS3K Taxhacker: version 0.8.0 only; version 0.8.1 only; version 0.8.2 only; version 0.8.3 only; version 0.8.4 only; version 0.8.5 only

Published 2026-09-20. Last modified 2026-09-21.