🔐 CVE Alert

CVE-2026-95809

HIGH 7.2

Opti-Behavior <= 1.9.2.1 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'country_name' Location Parameter

CVSS Score
7.2
EPSS Score
0.0%
EPSS Percentile
0th

The Opti-Behavior – Self-Hosted Heatmaps, Session Recordings, Funnels, A/B Testing & Smart Insights plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via 'country_name' Location Parameter in all versions up to, and including, 1.9.2.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The heatmap recording endpoint accepts unauthenticated requests protected only by a nonce that any visitor can freely obtain via the public opti_behavior_refresh_nonces AJAX action, removing any practical barrier to injecting the malicious payload.

CWE CWE-79
Vendor optiuser
Product opti-behavior – self-hosted heatmaps, funnels, a/b testing & smart insights
Published Oct 16, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

optiuser / Opti-Behavior – Self-Hosted Heatmaps, Funnels, A/B Testing & Smart Insights
0 ≤ 1.9.2.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/6c631593-4857-46c8-80b3-d028524cb86c?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.0/assets/js/metabox-analytics.js#L668 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.0/admin/class-opti-behavior-heatmap-ajax-handler.php#L2656 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.0/admin/class-opti-behavior-heatmap-ajax-handler.php#L1603 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.0/includes/class-opti-behavior-heatmap-session.php#L369 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.0/admin/class-opti-behavior-heatmap-post-metabox.php#L1498 plugins.svn.wordpress.org: https://plugins.svn.wordpress.org/opti-behavior/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3738510/opti-behavior/trunk/assets/js/metabox-analytics.js

Credits

CHOIGYEONGMIN