CVE-2026-24746

MediumPublic PoC

Published: 18 February 2026

Published

18 February 2026

Modified

20 February 2026

KEV Added

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Patch

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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 0.0002 5.2th percentile

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

Summary

CVE-2026-24746 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 5.2th 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 2 other techniques.

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 →

T1565.001 Stored Data Manipulation Impact

Adversaries may insert, delete, or manipulate data at rest in order to influence external outcomes or hide activity, thus threatening the integrity of the data.

attack.mitre.org →

Why these techniques?

Stored XSS directly enables client-side JavaScript execution (T1059.007) in victim browsers; facilitates session hijacking via script injection (T1185); and supports stored data manipulation (T1565.001) given the high integrity impact and persistent script storage in quotes.

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 Quotes functions of InvoicePlane version 1.7.0. In the Editing Quotes function, the application does not validate user…

input at the quote_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-2026-24746 is a Stored Cross-Site Scripting (XSS) vulnerability in InvoicePlane version 1.7.0, a self-hosted open source application for managing invoices, clients, and payments. The issue resides in the Edit Quotes function, where the application fails to validate user input in the quote_number parameter, allowing malicious scripts to be stored and executed. This CWE-79 flaw has 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).

An attacker with administrator privileges can exploit this vulnerability by injecting malicious payloads into the quote_number field during quote editing. Exploitation requires user interaction, such as an administrator viewing or interacting with the affected quote, which triggers the stored script. Successful attacks can lead to unauthorized modification of application data, creation of persistent backdoors via stored malicious scripts, and full compromise of the application's integrity.

InvoicePlane version 1.7.1 addresses the vulnerability with a patch, as detailed in the project's GitHub commit (https://github.com/InvoicePlane/InvoicePlane/commit/93622f2df88a860d89bfee56012cabb2942061d6) and security advisory (https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-73x8-gr6v-vjvj). Security practitioners should upgrade to the patched version to mitigate the risk.