CVE-2026-42739
Deferred Deferred - Pending Action
Improper Input Validation in Advanced IP Blocker Leads to DOM-Based XSS

Publication date: 2026-05-27

Last updated on: 2026-05-27

Assigner: Patchstack

Description
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.
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Meta Information
Published
2026-05-27
Last Modified
2026-05-27
Generated
2026-06-16
AI Q&A
2026-05-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-42739
EUVD
EUVD-2026-32191
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
inilerm advanced_ip_blocker to 8.10.7 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability is a Cross-site Scripting (XSS) issue found in the IniLerm Advanced IP Blocker plugin, specifically versions up to 8.10.7. It occurs due to improper neutralization of input during web page generation, allowing an attacker to inject malicious scripts into the web page's Document Object Model (DOM). This type of vulnerability is known as DOM-Based XSS.

Impact Analysis

Exploitation of this vulnerability can lead to several impacts including unauthorized script execution in the context of the affected web application. This can result in data theft, session hijacking, or manipulation of the web page content. According to the CVSS score of 7.1, the vulnerability has a high severity with potential impacts on confidentiality, integrity, and availability.

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