What is CVE-2026-57399?

CVE-2026-57399 is a high-severity vulnerability in Proxy &Amp; Vpn Blocker, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-07-13.

How severe is CVE-2026-57399?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Proxy &Amp; Vpn Blocker

CVE-2026-57399

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Proxy & VPN Blocker Proxy & VPN Blocker proxy-vpn-blocker allows Stored XSS.This issue affects Proxy & VPN Blocker: from n/a…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Affected products

Proxy &Amp; Vpn Blocker — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-57399?: CVE-2026-57399 is a high-severity vulnerability in Proxy &Amp; Vpn Blocker, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-07-13.
How severe is CVE-2026-57399?: High severity. CVSS v3 base score is 7.1 out of 10.