CVE-2026-34367 is a High severity Server-Side Request Forgery (SSRF) vulnerability (CVSS 7.6) affecting InvoiceShelf prior to version 2.2.0. This flaw allows an authenticated attacker with high privileges to inject unsanitised HTML into the invoice Notes field, enabling the application to fetch remote resources during PDF generation. Exploitation can lead to a high confidentiality impact, potentially exposing internal network information. There is currently no evidence of active exploitation, nor are public exploit codes available, though the vulnerability has received minor community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.2.0CPE matchmatch criteria | cpe:2.3:a:invoiceshelf:invoiceshelf:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
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