CVE-2021-36873 MEDIUM

CVE-2021-36873: WordPress iQ Block Country plugin <= 1.2.11 - Authenticated Persistent Cross-Site Scripting (XSS) vulnerability

Vendor Webence

Product iQ Block Country

Weakness CWE-79 · XSS

Published September 23, 2021

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

5.5/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction None

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Authenticated Persistent Cross-Site Scripting (XSS) vulnerability in WordPress iQ Block Country plugin (versions <= 1.2.11). Vulnerable parameter: &blockcountry_blockmessage.

Key dates

02Disclosure timeline

September 23, 2021 CVE published

April 28, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-36873 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html

Related vulnerabilities

CVE-2021-36873: WordPress iQ Block Country plugin <= 1.2.11 - Authenticated Persistent Cross-Site Scripting (XSS) vulnerability

01Description

02Disclosure timeline

03References

04Related CVE