Skip to content
Back to search

CVE-2026-89270

CRITICAL
9.1NVD

Summary

generated automatically from NVD data

The Popup Builder WordPress plugin, in all versions up to and including 4.4.5, has a missing authorization flaw (CWE-862) because it does not verify that a user is permitted to perform an action. An unauthenticated attacker can trash every published popup on a site with one GET request, aided by a second flaw in SGPopup::find() that returns false for published popups when the sg_popup_preview_id parameter is present. The CVSS v3.1 score is 9.1 (CRITICAL).

NVD description

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.5 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to trash all published popups on the site with a single unauthenticated GET request. The attack is amplified by a second flaw in SGPopup::find(), which returns false for every normally published popup when the sg_popup_preview_id parameter is present, causing the trash branch to fire against every popup on the site simultaneously.

Share:

EPSS · FIRST.org

0.39%probability of exploitation in the next 30 days

Higher than 33% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-31, recomputed daily by FIRST.org.

Similar CVEs

Other vulnerabilities of type CWE-862

…

Know which CVEs hit the versions you run.

Add the product and its version: cveo.tech lists the CVEs that affect it right away, then alerts you by email when a new one affects it — including before NVD has finished its analysis. Free, an account is all it takes.