# CVE-2026-28201

## Summary

- **CVE ID:** CVE-2026-28201
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-20, CWE-917, CWE-352
- **Published:** May 7, 2026
- **Last Modified:** May 7, 2026

## Description

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 malicious URL. Depending on the deployment, data exfiltration is also possible.

## Affected Products

- Open Notebook — Open Notebook (0)

## References

- [CNA](https://github.com/lfnovo/open-notebook/security/advisories/GHSA-5wj9-f8q5-8f9c)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.14%
- **EPSS Percentile:** 4.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._