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PatchSiren cyber security CVE debrief

CVE-2026-3141 wpwax CVE debrief

The FormGent plugin for WordPress has a critical vulnerability, CVE-2026-3141, with a CVSS score of 9.1. The vulnerability allows unauthenticated attackers to delete arbitrary files within the formgent uploads directory due to a missing capability check on the /wp-json/formgent/responses/attachments REST API endpoint. On Linux servers where the wp-content/uploads/formgent directory does not exist, the path traversal protection can be bypassed, enabling deletion of arbitrary files, including wp-config.php, which can lead to complete site takeover.

Vendor
wpwax
Product
FormGent – Next-Gen AI Form Builder for WordPress with Multi-Step, Quizzes, Payments & More
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-01
Original CVE updated
2026-08-01
Advisory published
2026-08-01
Advisory updated
2026-08-01

Who should care

WordPress administrators and users of the FormGent plugin should be aware of this critical vulnerability and take immediate action to update the plugin and monitor their sites for suspicious activity.

Technical summary

The FormGent plugin for WordPress is vulnerable to unauthorized arbitrary file deletion due to a missing capability check on the /wp-json/formgent/responses/attachments REST API endpoint. This allows unauthenticated attackers to delete arbitrary files within the formgent uploads directory. On Linux servers, the path traversal protection can be bypassed, enabling deletion of arbitrary files, including wp-config.php, which can lead to complete site takeover via a fresh WordPress installation.

Defensive priority

High priority due to critical CVSS score and potential for complete site takeover.

Recommended defensive actions

  • Immediately update the FormGent plugin to version 1.10.0 or later.
  • Verify that the wp-content/uploads/formgent directory exists and is properly configured.
  • Monitor server logs for suspicious file deletion activity.
  • Consider implementing additional security measures, such as restricting access to the REST API endpoint.
  • Perform a thorough review of the server's file system to identify potential vulnerabilities.
  • Implement a Web Application Firewall (WAF) to detect and prevent suspicious activity.
  • Regularly review and update the plugin to ensure the latest security patches are applied.

Evidence notes

Evidence from the NVD and Wordfence sources indicates a critical vulnerability in the FormGent plugin for WordPress. The vulnerability exists due to a missing capability check on the /wp-json/formgent/responses/attachments REST API endpoint, allowing unauthenticated attackers to delete arbitrary files.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-3141 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-3141

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-3141 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-3141

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.