---
id: CVE-2026-94039
title: A vulnerability was detected in vas3k TaxHacker up to 0.8.5
summary: >-
  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 …
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-918
vendor: vas3k
product: TaxHacker
affected:
  - TaxHacker 0.8.0
  - TaxHacker 0.8.1
  - TaxHacker 0.8.2
  - TaxHacker 0.8.3
  - TaxHacker 0.8.4
  - TaxHacker 0.8.5
published: '2026-09-20'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T15:17:37.837'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94039'
references:
  - url: 'https://github.com/vas3k/TaxHacker/'
    label: cna@vuldb.com
  - url: 'https://github.com/vas3k/TaxHacker/issues/186'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-94039'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/947878'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/407968'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/407968/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
epss: 0.00495
epssPercentile: 0.39899
ingestedAt: '2026-09-20T17:24:21.900Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.