User Blocker 1

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WordPress User Blocker Plugin <= 1.5.5 is vulnerable to CSV Injection

Patch within 30 days Low priority

Not known to be exploited Report an attack

5.9

Medium severity CVSS 3.1 score

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Patchstack Professional users are protected since 09.12.2022

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Solution

Fixed

Update the WordPress User Blocker plugin to the latest available version (at least 1.5.6).

Mika discovered and reported this CSV Injection vulnerability in WordPress User Blocker Plugin. This could allow a malicious actor to craft malicious formulas to then exploit vulnerabilities in the spreadsheet software or to execute commands to gain access to the victim';s PC. This vulnerability has been fixed in version 1.5.6.