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CVE-2026-8848

7.2 · HIGH

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…

Published Jul 9, 2026CWE-862EPSS 1.23%

Overview

CVE-2026-8848 is a high-severity vulnerability. It was published on July 9, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Controllers/RestAPI.php#L194Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L330Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L445Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L520Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Services/Connect.php#L177Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Controllers/RestAPI.php#L194Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L330Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L445Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L520Refplugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Services/Connect.php#L177

How CyberStrike helps

Frequently asked questions

What is CVE-2026-8848?

CVE-2026-8848 is a high-severity vulnerability. It was published on July 9, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-8848?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-8848?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-8848?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-8848 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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