CVE-2026-4160 — The Fluent Forms – Customizable Contact Forms, Survey,
Image via images.unsplash.com
CVE-2026-4160 — The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference via the 'submission_id' parameter in versions up to, and including, 6.1.21. This is due to missing authorization and owner
What This Means For You
- If your environment is affected by CWE-639, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-4160 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
6 rules · 6 SIEM formats6 auto-generated detection rules for this incident, mapped to MITRE ATT&CK. Available in Sigma, Splunk SPL, Sentinel KQL, Elastic Lucene, QRadar AQL, and Wazuh.
Web Application Exploitation Attempt — CVE-2026-4160
Want this in your SIEM's native format? Get Splunk SPL, Sentinel KQL, Elastic, QRadar AQL, or Wazuh — ready to paste.
6 Sigma rules mapped to the ATT&CK techniques from this breach — pick your SIEM and get a ready-to-paste query.
Get All SIEM Formats →Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-4160 | vulnerability | CVE-2026-4160 |
| CWE-639 | weakness | CWE-639 |
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 16, 2026 at 17:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
Believe this infringes your rights? Submit a takedown request.
Related Posts
OCaml opam Path Traversal: A Nasty CVE-2026-41082
CVE-2026-41082 — In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
CVE-2026-24749 — The Silverstripe Assets Module is a required component of
CVE-2026-24749 — The Silverstripe Assets Module is a required component of Silverstripe Framework. In versions prior to 2.4.5 and 3.0.0-rc1 through 3.1.2, images rendered in...
CVE-2025-43883 — Denial of Service
CVE-2025-43883 — Dell PowerScale OneFS, versions prior to 9.12.0.0, contains an improper check for unusual or exceptional conditions vulnerability. A high privileged attacker with local...