🔐 CVE Alert

CVE-2026-8848

HIGH 7.2

Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder <= 1.22.0 - Missing Authorization to Authenticated (Editor+) Arbitrary Plugin Installation

CVSS Score
7.2
EPSS Score
0.0%
EPSS Percentile
0th

The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.22.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with editor-level access and above, to install and activate an arbitrary plugin from an attacker-controlled URL, leading to remote code execution. Exploitation requires that a valid Popup Maker Pro license is active on the target site and that Popup Maker Pro is not yet installed, as these conditions are necessary for the legacy v1/connect/info endpoint to issue the bearer token used to satisfy the install endpoint's only non-spoofable validation check.

CWE CWE-862
Vendor danieliser
Product popup maker – boost sales, conversions, optins, subscribers with the ultimate wp popup builder
Published Jul 9, 2026
Last Updated Jul 9, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

danieliser / Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder
0 ≤ 1.22.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/e05d4320-01d0-40c4-9a9a-457171ef7f5c?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L520 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L330 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Controllers/RestAPI.php#L194 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Services/Connect.php#L177 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L445 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L520 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L330 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Controllers/RestAPI.php#L194 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Services/Connect.php#L177 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L445 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?reponame=&old=3589134%40popup-maker&new=3589134%40popup-maker

Credits

Sander Horsman