WP Fusion Lite <= 3.37.18 – Cross-Site Request Forgery to Data Deletion
CVE-2021-34661Published · Updated Action summary
Affected: ≤3.37.18Update to 3.37.30 or newer
All remediation steps- Severity
- Medium6.1
- CVSS
- 6.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:LWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:RUser interaction- Required
S:CScope- Changed
C:NConfidentiality- None
I:LIntegrity- Low
A:LAvailability- Low
- Weakness
- CWE-352 CSRF
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
WP Fusion Lite – Marketing Automation and CRM Integration for WordPress wp-fusion-lite
- Affected≤ 3.37.18
- Patched in3.37.30
Update to 3.37.30 or newer.
You are affected if you run ≤ 3.37.18. Version 3.37.30 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP Fusion Lite – Marketing Automation and CRM Integration for WordPress.
- 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 3.37.30, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WP Fusion Lite – Marketing Automation and CRM Integration for WordPress to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Xu-Liang Liao.
The WP Fusion Lite WordPress plugin is vulnerable to Cross-Site Request Forgery via the `show_logs_section` function found in the ~/includes/admin/logging/class-log-handler.php file which allows attackers to drop all logs for the plugin, in versions up to and including 3.37.18.
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 WP Fusion Lite – Marketing Automation and CRM Integration for WordPress
All 6| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | 3.47.14 - Missing Authorization 3.37.14 – 3.47.14Update to 3.48.0 | CVE-2026-90974 | |
| Medium4.3 | Missing Authorization ≤3.47.0Update to 3.48.0 | CVE-2026-90972 | |
| Medium5.3 | Information Exposure ≤3.42.10Update to 3.43.0 | CVE-2024-32796 | |
| High8.8 | Authenticated (Contributor+) Remote Code Execution ≤3.41.24Update to 3.42.10 | CVE-2024-27972 | |
| Medium6.1 | WP Fusion Lite <= 3.37.18 – Reflected Cross-Site Scripting ≤3.37.18Update to 3.37.30 | CVE-2021-34660 |
- Medium5.33.47.14 - Missing Authorization
3.37.14 – 3.47.14Update to 3.48.0
- Medium4.3Missing Authorization
≤3.47.0Update to 3.48.0
- Medium5.3Information Exposure
≤3.42.10Update to 3.43.0
- High8.8Authenticated (Contributor+) Remote Code Execution
≤3.41.24Update to 3.42.10
- Medium6.1WP Fusion Lite <= 3.37.18 – Reflected Cross-Site Scripting
≤3.37.18Update to 3.37.30
Same weakness (CSRF)
All CSRF| 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 6.1
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.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.
