Back to Database
Status published
Medium
CVE-2021-36873
WordPress iQ Block Country plugin <= 1.2.11 - Authenticated Persistent Cross-Site Scripting (XSS) vulnerability
Vulnerability Description
Authenticated Persistent Cross-Site Scripting (XSS) vulnerability in WordPress iQ Block Country plugin (versions <= 1.2.11). Vulnerable parameter: &blockcountry_blockmessage.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-36873
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Original researcher - Vlad Visse (Patchstack Red Team)
Affected Vendor
Webence
View all reports →Affected Software
iQ Block Country
Vulnerable Versions:
1.2.11
Timeline
Official Publish:
September 23rd, 2021
Last Modified:
April 28th, 2026
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N