Frontend Admin by DynamiApps <= 3.29.9 - Unauthenticated Privilege Escalation via 'item_id' Parameter

Description

The Frontend Admin by DynamiApps plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.29.9. The vulnerability exists because `ActionUser::conditions_logic()` gates the `current_user_can('edit_user', $user_id)` authorization check behind an `is_numeric()` test, causing the check to be skipped entirely when `$user_id` is a non-numeric string — a condition that can be induced by passing a crafted value such as `1one` through the unvalidated `item_id` parameter of the unauthenticated `wp_ajax_nopriv_frontend_admin/forms/change_form` AJAX endpoint. This makes it possible for attackers to escalate privileges to administrator by obtaining a server-signed `_acf_objects` payload carrying the non-numeric user ID, which WordPress subsequently coerces to integer 1 (the default administrator), allowing the attacker to overwrite that account's password or email address. Exploitation by unauthenticated users requires a public-facing frontend user form to be configured; in all other cases a subscriber-level account is sufficient.

Timeline

Scores

EPSS (exploitation in 30 days)

0.84% · top 42% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

• CWE-269 Improper Privilege Management (opens in a new tab)All about CWE-269 and its CVEs

Affected products

• shabti · Frontend Admin by DynamiApps

  • affected ≤ 3.29.9

References (12)

• https://www.wordfence.com/threat-intel/vulnerabilities/id/01404fad-7b5a-485a-b557-c608fe25e6c9?source=cve (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.9/main/frontend/forms/actions/user.php#L680 (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.9/main/frontend/forms/actions/user.php#L565 (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.9/main/frontend/forms/classes/display.php#L1654 (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.9/main/frontend/forms/classes/display.php#L37 (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.9/main/frontend/forms/classes/display.php#L1953 (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.3/main/frontend/forms/actions/user.php#L680 (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.3/main/frontend/forms/actions/user.php#L565 (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.3/main/frontend/forms/classes/display.php#L1654 (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.3/main/frontend/forms/classes/display.php#L37 (opens in a new tab)
• https://plugins.trac.wordpress.org/browser/acf-frontend-form-element/tags/3.29.3/main/frontend/forms/classes/display.php#L1953 (opens in a new tab)
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3633030%40acf-frontend-form-element&new=3633030%40acf-frontend-form-element (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-18432](https://trackcve.app/badge/CVE-2026-18432.svg)](https://trackcve.app/cve/CVE-2026-18432)

Record last updated 18 Aug 2026, 19:27 UTC.