WP Carticon vulnerability

The WP Carticon plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'carticon_js_script' parameter in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Published 4 Nov 2025Updated 19 Oct 20262 sources
CVSS 4.4

What happened

The WP Carticon plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'carticon_js_script' parameter in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected versions

WP Carticon: 0 through 1.0.0 (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.