Antispam bypass via spoofed client IP headers
Published Jul 9, 2024 · Updated Apr 8, 2026
IP address spoofing in Unlimited Elements For Elementor 1.5.112 and earlier allows remote attackers to bypass Form Builder antispam checks. The UniteFunctionsUC::getUserIp() helper accepts client-controlled proxy headers as the visitor address, and UniteCreatorForm uses that value when applying IP-based antispam controls. No authentication is required; successful requests evade only the Form Builder's antispam decision and do not directly disclose data or interrupt the site.
Summary
What happened
IP address spoofing in Unlimited Elements For Elementor 1.5.112 and earlier allows remote attackers to bypass Form Builder antispam checks. The UniteFunctionsUC::getUserIp() helper accepts client-controlled proxy headers as the visitor address, and UniteCreatorForm uses that value when applying IP-based antispam controls. No authentication is required; successful requests evade only the Form Builder's antispam decision and do not directly disclose data or interrupt the site.
The record
- CVE
- CVE-2024-6171
- Published
- Jul 9, 2024
- Updated
- Apr 8, 2026
- Vendor
- Unlimited Elements
- Product
- Unlimited Elements For Elementor
- Classifications
- CWE-348, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 9, 2024CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=1.5.112
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo