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TI-2026-12241 Aliases CVE-2026-14488GHSA-gvv9-4pjw-fv88

Missing authorization in metabox Meta Box AIO

Priority MEDIUM 46CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

The Meta Box AIO plugin for WordPress is vulnerable to Missing Authorization via the template_redirect dispatcher in the MB Frontend Submission extension in versions up to, and including, 3.8.0. This is due to the handle_request() function routing the mbfs_delete action without any capability or ownership check, and the nonce verification in check_ajax() being gated behind is_ajax() which is false for template_redirect requests, making it bypassable. This makes it possible for unauthenticated attackers to delete arbitrary posts and pages by supplying an attacker-controlled post ID via the rwmb_frontend_field_object_id GET parameter on any page that hosts a frontend submission form regardless of whether allow_delete is enabled.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00523 44th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
metaboxMeta Box AIOup to 3.8.0—No fix listedCNA
  • Meta Box AIO Vendormetabox Affected up to 3.8.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-14488
  2. 2026-10-03 Alias added: GHSA-gvv9-4pjw-fv88

References

Other 2

  • TI-2024-01119 Meta Box < 5.9.4 - Contributor+ Arbitrary Posts' Custom Field Disclosure CVSS 3.1MEDIUM 4.3
  • TI-2026-11316 Improper privilege management in metabox Meta Box Frontend Submission CVSS 3.1CRITICAL 9.8
  • TI-2025-13408 Meta Box <= 5.11.1 - Authenticated (Contributor+) Arbitrary File Deletion CVSS 3.1HIGH 7.2
  • TI-2019-11000 The Meta Box plugin before 4.16.2 for WordPress mishandles the uploading of files to custom folders. CVSS 3.0HIGH 7.5
  • TI-2019-10999 The Meta Box plugin before 4.16.3 for WordPress allows file deletion via ajax, with the… CVSS 3.0MEDIUM 6.5
  • TI-2023-05981 Meta Box – WordPress Custom Fields Framework <= 5.9.2 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences