CVE-2026-34366
InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.2.0, a Server-Side Request Forgery (SSRF) vulnerability exists in the Payment receipt PDF generation module. User-supplied HTML in the payment Notes field is passed unsanitised to the Dompdf rendering library, which will fetch any remote resources referenced in the markup. The vulnerability is exploitable directly via the PDF receipt endpoint, regardless of whether automated email attachments are enabled. This issue has been patched in version 2.2.0.
- Affected products
- Dompdf, Invoiceshelf
- Invoiceshelf
- < 2.2.0
- Fix
- Available
- CVSS 3.1
- 8.1 HIGH
- EPSS
- 0.2% (16th percentile)
- Weakness
- CWE-918
- NVD status
- Analyzed
- Published
- 2026-03-31
No indexed exploits for CVE-2026-34366 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-34366 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.