CVE-2026-71233

8.7 HIGHpublic exploit available

Published 2026-08-05 · Updated 2026-08-10

AI risk analysis

Summary: The flaw allows untrusted input to be executed as HTML in the client portal, enabling cross-site scripting (XSS) attacks.
Exploitability: Exploitation is relatively easy if an attacker can inject malicious scripts into the 'terms' field, requiring access to modify invoice data.
Blast radius: If exploited, this could lead to unauthorized data theft or manipulation of displayed content for all clients accessing the portal.
Prioritized remediation: Implement proper HTML sanitization before rendering user input in the Blade template.

xsshtml-sanitizationwebsanitization

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

InvoiceNinja v5-stable renders an invoice or quote's "terms" field in the client portal using Laravel Blade's raw output directive {!! ->terms !!} (resources/views/portal/ninja2020/invoices/includes/terms.blade.php) with no HTML sanitization.

CVSS vector

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

Weaknesses

CWE-79

Public exploit & PoC references

https://github.com/invoiceninja/invoiceninja

All references

https://github.com/invoiceninja/invoiceninja

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.