Known vulnerabilities in HollerBox — Fast & Effective Popups & Lead-Generation

Get more leads and sales with effective popups that convert! Integrate HollerBox with your favorite CRM and email marketing tools.

4Reported vulnerabilities

7.2Highest CVSS score

2.3.13Latest version

2,000+Active installs

What to do now

Update HollerBox — Fast & Effective Popups & Lead-Generation to 2.3.15 or later. 4 of these have a fixed version available. Updating resolves them.

Plugin last updated: July 27, 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-2023-2111	Medium 4.9	0.8%	Before 2.1.4	`2.1.4`	May 30, 2023
CVE-2026-48885	High 7.2	0.3%	2.3.10.1 and earlier	`2.3.11`	June 2, 2026
CVE-2026-106603	Medium 5.3	0.2%	2.3.14 and earlier	`2.3.15`	October 8, 2026
CVE-2023-41657	Medium 4.4	0.4%	2.3.2 and earlier	`2.3.3`	September 1, 2023

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