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WordPress Forminator plugin <= 1.58.3 - Broken Access Control vulnerability

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

5.3MediumCNA
Exploited
No known exploitation
Fix
No fix listed
Who is exposed
Not reported
30Pcve.now Index 30 of 100 · methodology v3 · provisional
  • Exploitation0/40No signal
  • Exposure20/25No login or user action needed per the CVSS vector, CISA rates it automatable · Data gap: No advisory context yet
  • Reach?/20Reach: unknown (data gap). No tracked technology or package matched
  • Severity5.3/10CVSS 5.3
  • No patch5/5No patch listed yet

What would change the score

  • Would score about 75 if added to CISA KEV
  • Would score about 70 if CISA's SSVC rates exploitation active
  • Would score about 35 if advisories confirm default setups are exposed

CVE-2026-116859 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.3 (medium) and affects Forminator; no fixed version is listed yet.

Published
Last modified
Published
Not listed in CISA KEV
30/100 · provisional
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

The Forminator plugin for WordPress, a form-building tool made by WPMU DEV, is affected by this flaw. An attacker could exploit missing authorization checks to perform actions they should not be allowed to take on the affected WordPress sites.

Read the original description

Missing Authorization vulnerability in WPMU DEV Forminator forminator allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Forminator: from n/a through 1.58.3.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  4. Record last updated

Affected versions

  • forminator

    through 1.58.3

Evidence 1

  1. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

FAQ

Questions about CVE-2026-116859

Is CVE-2026-116859 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-116859?

forminator: through 1.58.3.Source: cve.now feed data