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Input validation vulnerability in Popup Builder – On Page Load Popup, Exit Popup, Login Popup, On Click, Sticky Bar, Anti-AdBlock – FireBox 3.1.0-free

  • Severity: medium-risk
  • Status: Fixed
  • Publication: November 27, 2025

The FireBox plugin for WordPress has a security issue that allows hackers to insert harmful web scripts into website pages. This can happen when a user with at least contributor-level access logs in.

Detected in:

FireBox Popups – Increase Sales and Grow Your Email List fixed vulnerable versions:
Popup Builder – On Page Load Popup, Exit Popup, Login Popup, On Click, Sticky Bar, Anti-AdBlock – FireBox fixed vulnerable versions: >= * <= 3.1.0-free

This information is sourced from www.wpvulnerability.com. An open-source database of vulnerabilities maintained by the community. Help us out by submitting vulnerabilities!

Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:

> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21

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