What is CVE-2026-26270?

CVE-2026-26270 is a medium-severity vulnerability in Invoiceplane, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-02-18.

How severe is CVE-2026-26270?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Invoiceplane

CVE-2026-26270

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A Stored Cross-Site Scripting (XSS) vulnerability exists in InvoicePlane (latest version) that allows an authenticated user with permissions to manage Invoice Groups to inject malicious JavaScript into the "Identifier Format" field. This script executes when any user views the invoice list or the main dashboard. Version 1.7.1 patches the issue.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (7.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Invoiceplane — versions 1.7.0, = 1.7.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-26270?: CVE-2026-26270 is a medium-severity vulnerability in Invoiceplane, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-02-18.
How severe is CVE-2026-26270?: Medium severity. CVSS v3 base score is 5.4 out of 10.