Popup Builder <= 4.4.5 — Missing Authorization to Unauthenticated Arbitrary Popup Post Trashing via 'post_type' and 'sg_popup_preview_id' Parameters
CVE-2026-89270Published · Updated Action summary
Affected: ≤4.4.5Update to 4.4.6 or newer
All remediation steps- Severity
- Critical9.1
- CVSS
- 9.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-862 Missing Authorization
- Required access
- No account needed
- Exploit prediction (EPSS)
- 0.4% chance in 30 days34th percentile
- CISA KEV
- Not listed
On this page8
Am I affected?
Popup Builder – Create highly converting, mobile friendly marketing popups. popup-builder
- Affected≤ 4.4.5
- Patched in4.4.6
Update to 4.4.6 or newer.
You are affected if you run ≤ 4.4.5. Version 4.4.6 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Popup Builder – Create highly converting, mobile friendly marketing popups..
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 4.4.6, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Popup Builder – Create highly converting, mobile friendly marketing popups. to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to braintx.
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Popup Builder – Create highly converting, mobile friendly marketing popups.
All 25| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Missing Authorization <4.4.6Update to 4.4.6 | CVE-2026-112230 | |
| Medium5.3 | Create highly converting, mobile friendly marketing popups. <= 4.4.2 - Improper Authorization to Unauthenticated Subscriber Removal via Predictable Tokens ≤4.4.2Update to 4.4.3 | CVE-2025-13079 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤4.4.1Update to 4.4.2 | CVE-2025-9856 | |
| Medium4.4 | Authenticated (Admin+) Stored Cross-Site Scripting ≤4.3.4Update to 4.3.5 | CVE-2024-9428 | |
| Medium5.3 | Sensitive Information Exposure via Imported Subscribers CSV File ≤4.3.6Update to 4.3.7 | CVE-2024-2541 |
- Medium5.3Missing Authorization
<4.4.6Update to 4.4.6
- Medium5.3Create highly converting, mobile friendly marketing popups. <= 4.4.2 - Improper Authorization to Unauthenticated Subscriber Removal via Predictable Tokens
≤4.4.2Update to 4.4.3
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤4.4.1Update to 4.4.2
- Medium4.4Authenticated (Admin+) Stored Cross-Site Scripting
≤4.3.4Update to 4.3.5
- Medium5.3Sensitive Information Exposure via Imported Subscribers CSV File
≤4.3.6Update to 4.3.7
Same weakness (Missing Authorization)
All Missing Authorization| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
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Timeline
CVE published
Severity critical, CVSS 9.1
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- EPSS
- Exploit Prediction Scoring System by FIRST.org.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.