CVE-2026-39353 InvoicePlane: Remote Code Execution via Writable Templates Directory
Attackers can achieve remote code execution by uploading malicious PHP files to a writable template directory in InvoicePlane.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-39353?
CVE-2026-39353 is a critical vulnerability in InvoicePlane, published on 25 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-39353?
How do I fix CVE-2026-39353?
No fix has been published for CVE-2026-39353 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-39353 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39353 exists.
Sources
Also known as GHSA-v735-2x3r-gwpp.