Cross-site Scripting Vulnerability in IniLerm Advanced IP Blocker
CVE-2026-42739

7.1HIGH

Key Information:

Vendor

WordPress
Status
Advanced Ip Blocker
Vendor
CVE Published:
27 May 2026

What is CVE-2026-42739?

The IniLerm Advanced IP Blocker is susceptible to a Cross-site Scripting (XSS) vulnerability due to improper neutralization of user input during web page generation. This vulnerability allows attackers to inject malicious scripts into web pages viewed by users, potentially leading to unauthorized actions or data exposure. It affects all versions of the Advanced IP Blocker up to and including 8.10.7, emphasizing the critical need for users to update to the latest version to mitigate risks.

Affected Version(s)

Advanced IP Blocker 0 <= 8.10.7

References

https://patchstack.com/database/Wordpress/Plugin/advanced...
vdb-entry

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Peng Zhou | Patchstack Bug Bounty Program
.