🔐 CVE Alert

CVE-2026-57399

HIGH 7.1

WordPress Proxy & VPN Blocker plugin <= 3.5.8 - Cross Site Scripting (XSS) vulnerability

CVSS Score
7.1
EPSS Score
0.3%
EPSS Percentile
16th

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Proxy &amp; VPN Blocker Proxy &amp; VPN Blocker proxy-vpn-blocker allows Stored XSS.This issue affects Proxy &amp; VPN Blocker: from n/a through <= 3.5.8.

CWE CWE-79
Vendor proxy &amp; vpn blocker
Product proxy &amp; vpn blocker
Published Jul 13, 2026
Last Updated Jul 13, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

Affected Versions

Proxy &amp; VPN Blocker / Proxy &amp; VPN Blocker
0 ≤ 3.5.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗
patchstack.com: https://patchstack.com/database/Wordpress/Plugin/proxy-vpn-blocker/vulnerability/wordpress-proxy-vpn-blocker-plugin-3-5-8-cross-site-scripting-xss-vulnerability?_s_id=cve

Credits

Peng Zhou | Patchstack Bug Bounty Program