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PatchSiren cyber security CVE debrief

CVE-2026-86832 MetForm CVE debrief

The MetForm WordPress plugin before 4.3.1 does not properly restrict access to form submission data, allowing unauthenticated attackers to view submitter information through the REST API. This vulnerability affects WordPress installations using the MetForm plugin, potentially exposing sensitive information. Administrators should assess exposure and apply necessary updates or mitigations. The CVE record and NVD entry provide limited information about the vulnerability, and further verification is required to determine the scope of affected versions and potential impact.

Vendor
MetForm
Product
MetForm WordPress plugin
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-03
Original CVE updated
2026-10-03
Advisory published
2026-10-03
Advisory updated
2026-10-03

Who should care

WordPress administrators and security teams responsible for maintaining MetForm plugin installations should assess exposure and apply necessary updates or mitigations.

Why it matters

CVE-2026-86832 is a vulnerability in the MetForm WordPress plugin that allows unauthenticated attackers to view submitter information through the REST API. WordPress administrators and security teams should assess exposure, apply necessary updates or mitigations, and verify remediation.

  • Potential unauthorized access to form submission data
  • Possible view of submitter information by unauthenticated attackers
  • Requires verification of affected versions and remediation

Technical summary

The MetForm WordPress plugin before 4.3.1 does not properly restrict access to form submission data, allowing unauthenticated attackers to view submitter information through the REST API. This vulnerability is related to inadequate access controls in the plugin, which could lead to unauthorized access to form submission data. Affected WordPress installations should be updated to version 4.3.1 or later to mitigate this vulnerability.

Defensive priority

Assess exposure of MetForm WordPress plugin versions prior to 4.3.1 and restrict access to form submission data.

Recommended defensive actions

  • Assess exposure of MetForm WordPress plugin versions prior to 4.3.1
  • Restrict access to form submission data
  • Verify vendor remediation for MetForm WordPress plugin version 4.3.1 or later

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the scope of affected versions and potential impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-86832 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-86832

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

  • CVE-2026-86832 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-86832

    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.