Vulnerability · Published Oct 30, 2026 · Assigned by Wordfence
CVE-2026-110305Advanced Custom Fields: Extended <= 0.9.2.7 - Unauthenticated Sensitive Information Exposure in 'acf[<mapped_field>]' Parameter via {get_user} Template Tag Injection
High 7.5
In plain English
A high-severity information exposure in Advanced Custom Fields: Extended from hwk-fr. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Official description
The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 0.9.2.7 via the process. This makes it possible for unauthenticated attackers to extract sensitive data including the WordPress password hash of any user by injecting a {get_user} template tag that is resolved and written as a publicly readable term name. Exploitation requires that an administrator has configured a public [acfe_form] shortcode page with a Term action using a save.name field mapping — a supported and documented configuration.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| hwk-fr | Advanced Custom Fields: Extended | 0 – through 0.9.2.7 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/47eb0b74-66b0-4d7a-a57f-503de1b02abd?source=cve
- https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/modules/form/module-form-action-term.php#L287
- https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/modules/form/module-form-action-term.php#L227
- https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/modules/form/module-form-action-term.php#L337
- https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/template-tags.php#L609
- https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/template-tags.php#L1053
- https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/modules/form/module-form-front.php#L62
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3754818%40acf-extended%2Ftags%2F0.9.2.8&old=3667996%40acf-extended%2Ftags%2F0.9.2.7
- https://plugins.trac.wordpress.org/changeset/3754818/acf-extended/trunk/includes/modules/form/module-form-action-term.php