CVE-2026-8848: high-severity vulnerability in danieliser Popup Maker – Boost Sales…
Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder <= 1.22.0 - Missing Authorization to Authenticated (Editor+) Arbitrary Plugin Installation
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 1.2%
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
danieliser · Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup BuilderRelated CVEs — danieliser Popup Maker – Boost Sales…
In the same product, most dangerous first.
CVE-2026-87915HIGHPopup Maker <= 1.24.0 - Unauthenticated Stored Cross-Site Scripting via values[Name] ParameterEPSS 0.5%CVE-2026-15797MEDIUMPopup Maker <= 1.24.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via post_titleEPSS 0.4%CVE-2024-2336MEDIUMPopup Maker – Popup for opt-ins, lead gen, & more <= 1.18.2 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.3%CVE-2024-10583MEDIUMPopup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popups Builder <= 1.20.2 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.3%CVE-2024-7054MEDIUMPopup Maker <= 1.19.0 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.3%CVE-2025-4205MEDIUMPopup Maker <= 1.20.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via popupID ParameterEPSS 0.3%
References
https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Controllers/RestAPI.php#L194https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L330https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L445https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L520https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Services/Connect.php#L177https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Controllers/RestAPI.php#L194https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L330https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L445https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L520https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Services/Connect.php#L177https://plugins.trac.wordpress.org/changeset?reponame=&old=3589134%40popup-maker&new=3589134%40popup-makerhttps://www.wordfence.com/threat-intel/vulnerabilities/id/e05d4320-01d0-40c4-9a9a-457171ef7f5c?source=cve