CVE-2026-24744

MediumPublic PoC

Published: 18 February 2026

Published

18 February 2026

Modified

20 February 2026

KEV Added

—

Patch

—

CVSS Score 5.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:H/A:L

EPSS Score 0.0006 18.1th percentile

Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-24744 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Invoiceplane Invoiceplane. Its CVSS base score is 5.7 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique JavaScript (T1059.007); ranked at the 18.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Threat & Defense at a Glance

What attackers do: exploitation maps to JavaScript (T1059.007) and 1 other technique.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

MITRE ATT&CK Enterprise TechniquesAI

T1059.007 JavaScript Execution

Adversaries may abuse various implementations of JavaScript for execution.

attack.mitre.org →

T1185 Browser Session Hijacking Collection

Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.

attack.mitre.org →

Why these techniques?

Stored XSS enables arbitrary JavaScript injection/execution in other users' browsers (T1059.007) and directly facilitates browser session hijacking or input capture via malicious scripts persisted in invoice data (T1185).

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

NVD Description

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A Stored Cross-Site Scripting (XSS) vulnerability occurs in the Edit Invoices functions of InvoicePlane version 1.7.0. When editing invoices, the application does not validate user input at…

the `invoice_number` parameter. Although administrator privileges are required to exploit it, this is still considered a critical vulnerability as it can cause actions such as unauthorized modification of application data, creation of persistent backdoors through stored malicious scripts, and full compromise of the application's integrity. Version 1.7.1 patches the issue.

Deeper analysisAI

CVE-2026-24744 is a Stored Cross-Site Scripting (XSS) vulnerability, classified under CWE-79, affecting InvoicePlane version 1.7.0, a self-hosted open source application for managing invoices, clients, and payments. The flaw occurs in the Edit Invoices functions, where the application fails to validate user input in the `invoice_number` parameter, enabling the injection of malicious scripts. Published on 2026-02-18, it carries a CVSS v3.1 base score of 5.7 (AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:H/A:L).

Exploitation requires administrator privileges, allowing a malicious admin to inject XSS payloads via the vulnerable parameter. Successful attacks can lead to unauthorized modification of application data, creation of persistent backdoors through stored malicious scripts, and full compromise of the application's integrity, particularly when combined with user interaction from other admins or users viewing affected invoices.

InvoicePlane version 1.7.1 patches the issue by addressing the input validation deficiency. Security practitioners should review the fixing commit at https://github.com/InvoicePlane/InvoicePlane/commit/93622f2df88a860d89bfee56012cabb2942061d6 and the GitHub security advisory at https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-5mxx-553h-m62w for implementation details and upgrade guidance.