Funnel Builder by CartFlows <= 1.6.12 — Authenticated Stored Cross-Site scripting via FB Pixel ID and Google Analytics ID
CVE-2021-24330Published · Updated Action summary
Affected: <1.6.13Update to 1.6.13 or newer
All remediation steps- Severity
- Medium4.8
- CVSS
- 4.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:HPrivileges required- High
UI:RUser interaction- Required
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
CartFlows – Funnel Builder & Checkout Plugin for WooCommerce cartflows
- Affected< 1.6.13
- Patched in1.6.13
Update to 1.6.13 or newer.
You are affected if you run < 1.6.13. Version 1.6.13 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under CartFlows – Funnel Builder & Checkout Plugin for WooCommerce.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 1.6.13, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch CartFlows – Funnel Builder & Checkout Plugin for WooCommerce to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to R3N0.
The Funnel Builder by CartFlows – Create High Converting Sales Funnels For WordPress plugin before 1.6.13 did not sanitise its facebook_pixel_id and google_analytics_id settings, allowing high privilege users to set XSS payload in them, which will either be executed on pages generated by the plugin, or the whole website depending on the settings used.
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 CartFlows – Funnel Builder & Checkout Plugin for WooCommerce
All 11| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Missing Authorization ≤3.3.0Update to 3.3.1 | CVE-2026-120853 | |
| Medium6.5 | Unauthenticated Arbitrary Shortcode Execution ≤3.3.0Update to 3.3.1 | CVE-2026-120852 | |
| High8.8 | Authenticated (Contributor+) Remote Code Execution ≤3.2.0Update to 3.2.1 | CVE-2026-96837 | |
| Medium4.3 | Missing Authorization ≤2.2.3Update to 2.2.4 | CVE-2026-39477 | |
| Medium6.6 | Authenticated (Administrator+) PHP Object Injection ≤2.1.19Update to 2.2.0 | CVE-2026-25316 |
- Medium5.3Missing Authorization
≤3.3.0Update to 3.3.1
- Medium6.5Unauthenticated Arbitrary Shortcode Execution
≤3.3.0Update to 3.3.1
- High8.8Authenticated (Contributor+) Remote Code Execution
≤3.2.0Update to 3.2.1
- Medium4.3Missing Authorization
≤2.2.3Update to 2.2.4
- Medium6.6Authenticated (Administrator+) PHP Object Injection
≤2.1.19Update to 2.2.0
Same weakness (Cross-Site Scripting)
All Cross-Site Scripting| 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
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 4.8
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.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.