InvoicePlane up to 1.7.1 Mdl_custom_fields::used sql injection

Summaryinfo

A vulnerability described as problematic has been identified in InvoicePlane up to 1.7.1. This affects the function Mdl_custom_fields::used. Such manipulation leads to sql injection. This vulnerability is traded as CVE-2026-54790. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in InvoicePlane up to 1.7.1 and classified as problematic. Affected by this issue is the function Mdl_custom_fields::used. The manipulation with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2, InvoicePlane stores an administrator-controlled custom_field_table value without validating it against the allowed custom-field table names. Mdl_custom_fields::used() later concatenates that stored value into the FROM table and WHERE column identifier positions, so opening the custom-field edit form executes a second-order SQL injection. The injection can query arbitrary schema data and can cause application errors or denial of service. This issue is fixed in version 1.7.2.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-54790 since 06/16/2026. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are needed for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1505.

Upgrading to version 1.7.2 eliminates this vulnerability.

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Productinfo

Name

• InvoicePlane

Version

• 1.7.0
• 1.7.1

Website

• Product: https://github.com/InvoicePlane/InvoicePlane/

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