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TI-2026-86412 Aliases CVE-2026-97190GHSA-rxjg-4wwx-r4pf

Authorization bypass in Advanced Custom Fields relationship updates

Priority LOW 13CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-639.

Summary

The Advanced Custom Fields (ACF) WordPress plugin from 6.2.0 before 6.8.11 does not verify that a user may edit the target object before writing to it during bidirectional relationship synchronization (CWE-639). A user with contributor-level access or higher can add or remove a reference to their own object on posts, users, or terms they cannot otherwise edit. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Description from the CNA

The Advanced Custom Fields (ACF®) WordPress plugin before 6.8.11 does not verify that a user is allowed to edit the target object before writing to it during bidirectional relationship synchronization, allowing users with contributor-level access and above to add or remove a reference to their own object on arbitrary posts, users, or terms they cannot otherwise edit.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00168 6th percentileScored 2026-11-08
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Advanced Custom Fields (ACF®) (Unknown): 6.8.11

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
UnknownAdvanced Custom Fields (ACF®)6.2.0 to before 6.8.116.8.11Patch availableCNA
  • Advanced Custom Fields (ACF®) VendorUnknown Affected 6.2.0 to before 6.8.11 Fixed in 6.8.11 Patch available CNA

Remediation

Upgrade Advanced Custom Fields (ACF) to version 6.8.11, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

  • Fix · CNA Advanced Custom Fields (ACF®) (Unknown) Fixed in 6.8.11

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Advanced Custom Fields (ACF®) 6.8.11

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-86413 Advanced Custom Fields Improper Access Control in Post Save PathPriority LOW 13
    • TI-2026-86411 Advanced Custom Fields: Contributor+ Sees Unpublished Post TitlesPriority LOW 13
    Show all 3 records →

Timeline

  1. 2026-11-07 Threatist record created from CVE-2026-97190
  2. 2026-11-07 Alias added: GHSA-rxjg-4wwx-r4pf
  3. 2026-11-07 CVSS score added · CISA ADP
  4. 2026-11-07 Weakness changed · CISA ADP
  5. 2026-11-07 CISA SSVC decision points changed

References

Exploit 1

Sources

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