What is CVE-2026-28201?

CVE-2026-28201 is a high-severity vulnerability in Lfnovo Open-notebook, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2026-05-07.

How severe is CVE-2026-28201?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Lfnovo Open-notebook

CVE-2026-28201

An improper input validation, together with an overly permissive default CORS configuration in Open Notebook v1.8.1 allows remote attacker to trick a legitimate user to alter or delete arbitrary database entries via specially crafted malic…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.001 (17.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Lfnovo Open-notebook
Open Notebook — versions 0

Weakness classification (CWE)

CWE-20 — Improper Input Validation
CWE-352 — Cross-Site Request Forgery (CSRF)
CWE-917 — Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection)

References

a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-28201?: CVE-2026-28201 is a high-severity vulnerability in Lfnovo Open-notebook, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2026-05-07.
How severe is CVE-2026-28201?: High severity. CVSS v3 base score is 7.8 out of 10.