# QA Assistants – Driven by data <= 5.3.0.1 - Unauthenticated Stored Cross-Site Scripting via 'event_ary' Parameter

- **ID:** WPSEC-2026-1479
- **Plugin:** QA Analytics – Web Analytics Tool with Heatmaps & Session Replay Across All Pages (`qa-heatmap-analytics`), https://wordpress.org/plugins/qa-heatmap-analytics/
- **Affected versions:** all versions before 5.3.0.2
- **Fixed in:** 5.3.0.2 (Update to 5.3.0.2 or later.)
- **Severity:** High 7.2 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N)
- **Weakness:** CWE-79
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-23)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/qa-heatmap-analytics
- **Fix released:** 2026-10-22
- **Published:** 2026-10-23
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1479/

## Description

The QA Assistants – Driven by data plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'event_ary' parameter of the public behavioral tracking endpoint in all versions up to, and including, 5.3.0.1, due to insufficient input validation of submitted event rows and insufficient output escaping when the recorded event data is embedded in a single-quoted JavaScript string on the session replay screen. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that will execute whenever an administrator or another user with analytics access views the replay of the affected session.

## References

- https://wpsec.com/vuln/WPSEC-2026-1479/
- https://plugins.svn.wordpress.org/qa-heatmap-analytics/tags/5.3.0.2/
- https://wordpress.org/plugins/qa-heatmap-analytics/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1479/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.