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WordPress iQ Block Country plugin <= 1.2.11 - Authenticated Persistent Cross-Site Scripting (XSS) vulnerability

iq-block-country

Software
iQ Block Country
Vulnerable Versions
<= 1.2.11
Fixed in version
1.2.12
CVE
CVE-2021-36873
References
CVE-2021-36873
Plugin changelog
Credits
Vlad Visse (Patchstack Red Team)
Classification
Cross Site Scripting (XSS)
OWASP Top 10
A7: Cross-Site Scripting (XSS)
Disclosure Date
2021-07-18
CVSS 3.0 score

5.5

Medium

Requires high privilege user authentication like admin.

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Details

Authenticated Persistent Cross-Site Scripting (XSS) vulnerability discovered by Vlad Visse (Patchstack Red Team) in WordPress iQ Block Country plugin (versions <= 1.2.11). Vulnerable parameter: &blockcountry_blockmessage.

Solution

Update the WordPress iQ Block Country plugin to the latest available version (at least 1.2.12).

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