CVE-2026-26281 — MEDIUM (4.4)

Vulnerability Description

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A stored cross-site scripting (XSS) vulnerability in the Sumex invoice view allows an authenticated user with client and invoice management privileges to execute arbitrary JavaScript in the browser of any user viewing the invoice. This can lead to session hijacking, data theft, or other malicious actions on behalf of the victim user. Version 1.7.1 patches the issue.

CVSS Score

4.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Invoiceplane	Invoiceplane	1.7.0

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2026-26281?

CVE-2026-26281 is a vulnerability with a CVSS score of 4.4 (MEDIUM). InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A stored cross-site scripting (XSS) vulnerability in the Sumex invoice view allows an authenticated ...

How severe is CVE-2026-26281?

CVE-2026-26281 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-26281?

Check the references section above for vendor advisories and patch information. Affected products include: Invoiceplane Invoiceplane.