SSRF in Vas3k Taxhacker
CVE-2026-94039
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (42.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Vas3k Taxhacker — versions 0.8.0, 0.8.1, 0.8.2
Weakness classification (CWE)
References
- vuldb.com/vuln/407968 (technical-description, vdb-entry)
- vuldb.com/vuln/407968/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-94039 (third-party-advisory)
- vuldb.com/submit/947878 (third-party-advisory)
- github.com/vas3k/TaxHacker/issues/186 (issue-tracking, exploit)
- github.com/vas3k/TaxHacker/ (product)
Frequently asked questions
- What is CVE-2026-94039?
- CVE-2026-94039 is a high-severity vulnerability in Vas3k Taxhacker, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.3/10. Published 2026-09-20.
- How severe is CVE-2026-94039?
- High severity. CVSS v3 base score is 7.3 out of 10.