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CVE-2026-39353

9.1 · CRITICAL

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments.

Published Sep 25, 2026CWE-98EPSS 0.45%

Overview

CVE-2026-39353 is a critical-severity vulnerability. It was published on September 25, 2026 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/InvoicePlane/InvoicePlane/commit/00e599db25804024eb323cfb751349bf3b1d8e8aGitHubgithub.com/InvoicePlane/InvoicePlane/pull/1536GitHubgithub.com/InvoicePlane/InvoicePlane/releases/tag/v1.7.2-rc-1GitHubgithub.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-v735-2x3r-gwppGitHubgithub.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-v735-2x3r-gwpp

How CyberStrike helps

Frequently asked questions

What is CVE-2026-39353?

CVE-2026-39353 is a critical-severity vulnerability. It was published on September 25, 2026 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-39353?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-39353?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-39353?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-39353 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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