Threat intelligence

Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder <= 1.23.0 - Unauthenticated Stored Cross-Site Scripting

CVE-2026-28177 · popup-maker

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Popup Maker at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder <= 1.23.0 - Unauthenticated Stored Cross-Site Scripting
Affected software: popup-maker(Plugin)
Affected versions: ≤ 1.23.0
Authentication: Unauthenticated
Vulnerability type: Cross-site scripting
CVE: CVE-2026-28177
Published: 5 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory 75388e1c-e1ad-4f65-9f5a-a5da8fd4ecc0). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Popup Maker version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Popup Maker advisoriesBack to catalog