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TI-2026-07370 Aliases CVE-2026-8382GHSA-mqv8-cjf6-jmc9

Missing authorization in wpengine Advanced Custom Fields

Priority LOW 30CWE-862Published · Updated

Key facts

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

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

Summary

The Advanced Custom Fields (ACF®) plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.8.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to overwrite the post_title and post_content of any post bound to a publicly accessible acf_form() instance by injecting values into the _post_title and _post_content parameters of a form submission request.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00464 40th 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
wpengineAdvanced Custom Fields (ACF®)up to 6.8.1—No fix listedCNA
  • Advanced Custom Fields (ACF®) Vendorwpengine Affected up to 6.8.1 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-2026-8382
  2. 2026-10-03 Alias added: GHSA-mqv8-cjf6-jmc9

References

Other 3

  • TI-2023-06336 Better Search Replace <= 1.4.4 - Unauthenticated PHP Object Injection CVSS 3.1CRITICAL 9.8
  • TI-2024-23053 Wordpress Advanced Custom Fields Pro plugin < 6.2.10 - Contributor+ Local File Inclusion vulnerability CVSS 3.1CRITICAL 9.9
  • TI-2019-07258 The WPGraphQL 0.2.3 plugin for WordPress allows remote attackers to register a new user… CVSS 3.0CRITICAL 9.8
  • TI-2019-07259 An issue was discovered in the WPGraphQL 0.2.3 plugin for WordPress. CVSS 3.0CRITICAL 9.1
  • TI-2024-03640 Genesis Blocks <= 3.1.3 - Contributor+ Stored XSS CVSS 3.1MEDIUM 6.8
  • TI-2022-01434 WPGraphQL WooCommerce <= 0.11.0 - Unauthenticated Coupon Codes Disclosure CVSS 3.1MEDIUM 5.3
See all 32 →

Sources

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