Known vulnerabilities in Hello Bar Popup Builder

Easily add a Popup to your WordPress site with the official HelloBar WordPress plugin.

1Reported vulnerabilities

6.4Highest CVSS score

1.5.3Latest version

3,000+Active installs

What to do now

Update Hello Bar Popup Builder to 1.5.2 or later. 1 of these have a fixed version available. Updating resolves them.

Plugin last updated: June 4, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2026-39666	Medium 6.4	0.2%	1.5.1 and earlier	`1.5.2`	February 18, 2026

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.