User-data exfiltration via unauthenticated CRM settings overwrite
Published Oct 1, 2026 · Updated Oct 1, 2026
Authentication bypass in Jack Arturo WP Fusion Lite before 3.48.0 allows remote attackers to redirect CRM-synced user data to an attacker host. The application-password return replaces the CRM URL, username, and password before WordPress checks whether the requester is logged in. The flaw affects sites using the FluentCRM REST, FunnelKit Automations, or Groundhogg REST connection; subsequent synchronization sends user data to the substituted endpoint.
Summary
What happened
Authentication bypass in Jack Arturo WP Fusion Lite before 3.48.0 allows remote attackers to redirect CRM-synced user data to an attacker host. The application-password return replaces the CRM URL, username, and password before WordPress checks whether the requester is logged in. The flaw affects sites using the FluentCRM REST, FunnelKit Automations, or Groundhogg REST connection; subsequent synchronization sends user data to the substituted endpoint.
The record
- CVE
- CVE-2026-90974
- Published
- Oct 1, 2026
- Updated
- Oct 1, 2026
- Vendor
- Jack Arturo
- Product
- WP Fusion Lite
- Classifications
- T1565.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 1, 2026CVE publishedPublication date reported by the CVE source.
- Oct 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.37.14 <3.48.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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