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WP Fusion Lite vulnerabilities
WP Fusion Lite has 4 known vulnerabilities in this database. The most recent published record is dated 1 Oct 2026.
- Known vulnerabilities
- 4
- Active installs
- 5,000+
- Latest version
- 3.48.0
- Last updated
- 25 Sep 2026
- Most recent
- 1 Oct 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Broken access control CVE-2026-90972 | Medium 5.4 | Before 3.48.0 | Fixed in 3.48.0 | 6 d ago |
| Broken access control CVE-2026-90974 | Medium 6.5 | Before 3.48.0 | Fixed in 3.48.0 | 6 d ago |
| Cross-site scripting (XSS) CVE-2021-34660 | Medium 6.1 | Up to 3.37.18 | Fixed in a later version (latest 3.48.0) | 9 Aug 2021 |
| Cross-site request forgery (CSRF) CVE-2021-34661 | Medium 6.1 | Up to 3.37.18 | Fixed in a later version (latest 3.48.0) | 9 Aug 2021 |
Read the published descriptions
- CVE-2026-90972, 1 Oct 2026
- The WP Fusion Lite WordPress plugin before 3.48.0 does not perform a capability check on two of its admin AJAX handlers, allowing any authenticated subscriber to read other users' email addresses and to trigger a cross-user CRM re-sync. CVE record
- CVE-2026-90974, 1 Oct 2026
- The WP Fusion Lite WordPress plugin before 3.48.0 does not require authentication on a settings handler that runs during admin initialization, allowing unauthenticated users to overwrite the site's CRM integration endpoint and credentials, after which synced user data is delivered to an attacker-chosen host. CVE record
- CVE-2021-34660, 9 Aug 2021
- The WP Fusion Lite WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the startdate parameter found in the ~/includes/admin/logging/class-log-table-list.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.37.18. CVE record
- CVE-2021-34661, 9 Aug 2021
- 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. CVE record
What to do if you run WP Fusion Lite
If you run WP Fusion Lite, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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