CVE-2026-34367CWE-918

InvoiceShelf: SSRF in Invoice PDF Rendering via Unsanitised HTML in Notes Field

High · published March 31, 2026

CVSS v3.1
7.6
EPSS
0%
Percentile
31.3
In the wild
Unconfirmed
What it is

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 Invoice PDF generation module. User-supplied HTML in the invoice Notes field is passed unsanitised to the Dompdf rendering library, which will fetch any remote resources referenced in the markup. This can be triggered via the PDF preview and email delivery endpoints. This issue has been patched in version 2.2.0.

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00385 · 31.3th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-03-31T20:16Z
EPSS history
Timeline
  • 31 MAR 20:16Z
    InvoiceShelf: SSRF in Invoice PDF Rendering via Unsanitised HTML in Notes Field
    cvelistv5