# CVE-2026-97190: Advanced Custom Fields 6.2.0 - 6.8.10 - Contributor+ Relationship Field Update on Arbitrary Objects via IDOR

Status: published. Published: 2026-11-07. Updated: 2026-11-07.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Unknown / Advanced Custom Fields (ACF®): ≥ 6.2.0; < 6.8.11 (affected, semver). Source: CNA: WPScan

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-639

## Exploit evidence

- exploit: https://wpscan.com/vulnerability/9e35af14-3981-4751-a08a-98431c1ac9cf/ (CNA: WPScan)

## References

- https://wpscan.com/vulnerability/9e35af14-3981-4751-a08a-98431c1ac9cf/ (CNA: WPScan; exploit, vdb-entry, technical-description)

## Provenance

- CNA: WPScan: https://www.cve.org/CVERecord?id=CVE-2026-97190; retrieved 2026-11-07; source updated 2026-11-07

Revision: 21788b1c43420be21ba46a731cd5db4f3d5cc7b35cdc97bb1a467eab1c18e7fa

Canonical: https://y2.dev/cve/CVE-2026-97190

## Agent and API access

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- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.