What is CVE-2026-39353?

CVE-2026-39353 is a critical-severity vulnerability in Invoiceplane, classified under PHP Remote File Inclusion. CVSS score: 9.1/10. Published 2026-09-25.

How severe is CVE-2026-39353?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Invoiceplane

CVE-2026-39353

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2-rc-1, InvoicePlane builds its permitted template list by scanning a PHP template directory that can be written through an administrator-controlled file-write capability. A malicious PHP file placed in the directory is automatically trusted by Mdl_templates and can be selected as public_invoice_template. When a public invoice is rendered, the guest View controller includes the trusted file and executes it with web-server privileges. This issue is fixed in version 1.7.2-rc-1.

Published 2026-09-25 · last modified 2026-09-25.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Invoiceplane — versions < 1.7.2-rc-1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-39353?: CVE-2026-39353 is a critical-severity vulnerability in Invoiceplane, classified under PHP Remote File Inclusion. CVSS score: 9.1/10. Published 2026-09-25.
How severe is CVE-2026-39353?: Critical severity. CVSS v3 base score is 9.1 out of 10.