CVE-2026-42739 HIGH

CVE-2026-42739: WordPress Advanced IP Blocker plugin <= 8.10.7 - Cross Site Scripting (XSS) vulnerability

Vendor Inilerm
Product Advanced IP Blocker
Weakness CWE-79 · XSS
Published May 27, 2026
Last update May 27, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in IniLerm Advanced IP Blocker advanced-ip-blocker allows DOM-Based XSS.This issue affects Advanced IP Blocker: from n/a through <= 8.10.7.

Explanation of Vulnerability in Simple Terms

02Summary

Advanced IP Blocker versions 8.10.7 and earlier contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the application. The vulnerability requires user interaction to trigger and can affect multiple users due to its changed scope. An attacker can steal session tokens, redirect users, or deface content visible to site visitors.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that runs in users' browsers to steal credentials, redirect traffic, or modify page content.

Potential impact on your site

04Site Impact

Site visitors may be redirected, have credentials stolen, or see altered content if they interact with attacker-controlled input.

Conditions required to exploit

05Prerequisites

Attacker must trick a user into visiting a malicious link or page containing the payload; no authentication required.

Key dates

06Disclosure timeline

May 27, 2026 CVE published
May 27, 2026 Record updated

Related vulnerabilities

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