Vulnerability · Published Jul 13, 2026 · Assigned by Patchstack
CVE-2026-57399WordPress Proxy & VPN Blocker plugin <= 3.5.8 - Cross Site Scripting (XSS) vulnerability
High 7.1
In plain English
A high-severity cross-site scripting in Proxy & VPN Blocker from Proxy & VPN Blocker. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.3%top 83.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 through <= 3.5.8.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Proxy & VPN Blocker | Proxy & VPN Blocker | 0 – through 3.5.8 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L