Authenticated cross-object modification via capability-only authorization
Published Jan 7, 2026 · Updated Jan 7, 2026
Authorization bypass in Aires Gonçalves ACF to REST API 3.3.4 and earlier allows remote authenticated users to modify ACF data. The update_item_permissions_check() method accepts the broad edit_posts capability without checking permissions for the referenced post, user, comment, term, or options object. Contributor-level access is sufficient to alter fields on unowned posts, user accounts, comments, taxonomy terms, and global options through /wp-json/acf/v3/{type}/{id}.
Summary
What happened
Authorization bypass in Aires Gonçalves ACF to REST API 3.3.4 and earlier allows remote authenticated users to modify ACF data. The update_item_permissions_check() method accepts the broad edit_posts capability without checking permissions for the referenced post, user, comment, term, or options object. Contributor-level access is sufficient to alter fields on unowned posts, user accounts, comments, taxonomy terms, and global options through /wp-json/acf/v3/{type}/{id}.
The record
- CVE
- CVE-2025-12030
- Published
- Jan 7, 2026
- Updated
- Jan 7, 2026
- Vendor
- Aires Gonçalves
- Product
- ACF to REST API
- Classifications
- CWE-639, T1565.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 7, 2026CVE publishedPublication date reported by the CVE source.
- Jan 7, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=* <=3.3.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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