CVE-2026-24743

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 v3.1 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 18.6th percentile

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

Summary

CVE-2026-24743 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 18.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and CM-5 (Access Restrictions for Change).

Deeper analysis

CVE-2026-24743 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 issue resides in the Upload Invoice Logo function, which permits the upload of SVG files without adequate sanitization, enabling the injection of malicious scripts that persist and execute in the context of the application.

An attacker with administrator privileges (PR:H) can exploit this vulnerability over the network (AV:N) with low complexity (AC:L) but requires user interaction (UI:R), as indicated by the CVSS v3.1 base score of 5.7 (C:L/I:H/A:L). Successful exploitation allows the creation of persistent backdoors via stored malicious scripts, unauthorized modification of application data, 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 (93622f2df88a860d89bfee56012cabb2942061d6) and security advisory (GHSA-485m-4725-2428). Security practitioners should upgrade to the patched version and review access controls for administrative functions involving file uploads.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-7967

Vulnerability details

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A Stored Cross-Site Scripting (XSS) vulnerability occurs in the upload Invoice Logo functions of InvoicePlane version 1.7.0. The Upload Invoice Logo function allows the application to upload…

svg files. 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.

CWE(s): CWE-79

Related Threats

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 via unsanitized SVG upload directly enables persistent JavaScript execution (T1059.007) within the web app context and facilitates browser session hijacking through injected scripts (T1185).

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