# CVE-2026-110305: Advanced Custom Fields: Extended sensitive information exposure via template injection

Source: https://junglewise.ai/threats/cve-2026-110305-the-advanced-custom-fields-extended-plugin-for-wordpress-is  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-30. Updated: 2026-10-30  
License: CC BY 4.0 with a link back

CVE-2026-110305 · Severity: high · CVSS 7.5 · Published 2026-10-30

The Advanced Custom Fields: Extended plugin for WordPress allows unauthenticated attackers to extract sensitive data including WordPress user password hashes when an administrator has configured a public form with specific Term action settings. An attacker can inject a template tag that gets resolved and written to a publicly readable location, compromising user account security and enabling unauthorized access to WordPress sites.

Technologies: [Delicious Brains Advanced Custom Fields: Extended](https://junglewise.ai/threats/technologies/delicious-brains-advanced-custom-fields-extended). Vendors: [Delicious Brains](https://junglewise.ai/threats/vendors/delicious-brains).

## Quick answers

**Is CVE-2026-110305 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-110305 being exploited in the wild.

**How severe is CVE-2026-110305?** High severity, with a CVSS score of 7.5, published 30 October 2026.

**Which products and versions are affected?** Delicious Brains Advanced Custom Fields: Extended 0.9.2.7 and earlier.

**Is there a fix for CVE-2026-110305?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-110305 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-110305?** Check whether you run Delicious Brains Advanced Custom Fields: Extended at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The plugin fails to sanitize template tags in form processing, allowing unauthenticated attackers to inject {get_user} tags into acfe_form shortcodes configured with a Term action and save.name field mapping. The injected tags are resolved server-side and written as publicly readable term names, exposing sensitive user data including password hashes. Exploitation requires a specific and documented administrator configuration.

## Affected products

- delicious-brains Advanced Custom Fields: Extended 0.9.2.7 and earlier

## Timeline

- 2026-10-30: disclosed

## References

- [https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/modules/form/module-form-action-term.php](https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/modules/form/module-form-action-term.php)
- [https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/modules/form/module-form-action-term.php](https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/modules/form/module-form-action-term.php)

## Related threats

- [Advanced Custom Fields: Extended authorization bypass in AJAX handlers](https://junglewise.ai/threats/cve-2026-2839-the-advanced-custom-fields-extended-plugin-for-wordpress-is)
- [Advanced Custom Fields Extended privilege escalation in front-end Forms](https://junglewise.ai/threats/cve-2026-94268-the-advanced-custom-fields-extended-wordpress-plugin-before-0-9-2)
- [Advanced Custom Fields: Extended unauthenticated RCE in post update](https://junglewise.ai/threats/cve-2026-94267-the-advanced-custom-fields-extended-wordpress-plugin-before-0-9-2)
- [Advanced Custom Fields: Extended XSS in form shortcode attributes](https://junglewise.ai/threats/cve-2026-94264-the-advanced-custom-fields-extended-wordpress-plugin-before-0-9-2)
- [Advanced Custom Fields: Extended account takeover in user update](https://junglewise.ai/threats/cve-2026-94262-the-advanced-custom-fields-extended-wordpress-plugin-before-0-9-2)