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TI-2021-14965 Aliases CVE-2021-36873GHSA-5mcg-fw36-rwf2

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

Priority LOW 27CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01215 68th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WebenceiQ Block Country1.2.11 – 1.2.11—No fix listedCNA
  • iQ Block Country VendorWebence Affected 1.2.11 – 1.2.11 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:webence:iq_block_country:*:*:*:*:*:wordpress:*:*up to 1.2.11VulnerableWebence
  • cpe:2.3:a:webence:iq_block_country:*:*:*:*:*:wordpress:*:* Versions up to 1.2.11 Vulnerable ·Webence

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-36873
  2. 2026-10-03 Alias added: GHSA-5mcg-fw36-rwf2

References

Advisory 2

  • TI-2022-19674 WordPress iQ Block Country plugin <= 1.2.18 - Block BYPASS vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-01628 iQ Block Country < 1.2.20 - Protection Bypass due to IP Spoofing CVSS 3.1HIGH 7.5
  • TI-2022-00181 iQ Block Country < 1.2.13 - Admin+ Arbitrary File Deletion via Zip Slip CVSS 3.1MEDIUM 4.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences