CVE-2026-89270: The Popup Builder – Create highly converting, mobile friendly marketing popups
Source GCVE Database
Not known to be exploited · CVSS 9.1 Critical.
Data as of 31 Oct 2026, 10:50 UTC
Thin evidence
One scorer or none| CNA (Wordfence) | CVSS 3.1 | 9.1 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 31 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| popupbuilderPopup Builder – Create highly converting, mobile friendly marketing popups. | Affected
| Fixed in– |
AI-suggested
Until a fix is available, restrict access to the plugin's endpoints if possible and monitor for suspicious GET requests containing the 'sg_popup_preview_id' parameter.
Description
The Popup Builder WordPress plugin up to version 4.4.5 contains an authorization bypass vulnerability that allows unauthenticated attackers to trash all published popups with a single GET request. This is caused by improper authorization checks and is worsened by a logic flaw in the SGPopup::find() function, which triggers the trashing action on all popups when a specific parameter is present.
References
- nvd.nist.gov/vuln/detail/CVE-2026-89270 (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.5/com/classes/Filters.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.5/com/classes/Filters.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.5/com/classes/popups/SGPopup.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.5/com/classes/popups/SGPopup.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.5/com/classes/popups/SGPopup.php (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3755160/popup-builder/trunk/com/classes/popups/SGPopup.php (opens in a new tab)
- wordpress.org/plugins/popup-builder (opens in a new tab)
- wordfence.com/threat-intel/vulnerabilities/id/13af3a6e-d3ef-41f0-9424-fe2c9b17c8bb?source=cve (opens in a new tab)