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 the 'targetUrl' 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 ingest endpoint is gated only by a nonce that is publicly emitted to every anonymous visitor on tracked pages via optiBehaviorHeatmapConfig.nonce, meaning no account or authentication of any kind is required to write the malicious payload.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 2
- StatusReceived → DeferredNVD modified 2026-10-16 15:17
- First seenCVSS 7.2NVD modified 2026-10-16 06:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 8
- https://plugins.svn.wordpress.org/opti-behavior/
- https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.1/admin/class-opti-behavior-heatmap-ajax-handler.php#L1652
- https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.1/admin/class-opti-behavior-heatmap-ajax-handler.php#L3455
- https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.1/admin/class-opti-behavior-heatmap-post-metabox.php#L1389
- https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.1/assets/js/metabox-analytics.js#L553
- https://plugins.trac.wordpress.org/browser/opti-behavior/tags/1.9.1/public/class-opti-behavior-heatmap-frontend.php#L905
- https://plugins.trac.wordpress.org/changeset/3738510/opti-behavior/trunk/assets/js/metabox-analytics.js
- https://www.wordfence.com/threat-intel/vulnerabilities/id/41f6939d-d87a-47e5-979f-2cad021c6e81?source=cve