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CVE-2026-18432— Frontend Admin by DynamiApps <= 3.29.9 - Unauthenticated Privilege Escalation via 'item_id' Parameter

Quick assessment

Affected
shabti Frontend Admin by DynamiApps
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Frontend Admin by DynamiApps是WordPress基金会开源的一款允许用户在网站前端管理后台内容的CMS插件。 WordPress Frontend Admin by DynamiApps 3.29.9及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于ActionUser::conditions_logic()函数将授权检查置于is_numeric()测试之后，导致当$user_id为非数字字符串时检查被跳过，攻击者可通过未验证的item_id参数传递特制值

CVSS 9.8 · Critical EPSS 0.84% · P56

Affected Version Matrix 1

VendorProduct Version RangeStatus
shabti Frontend Admin by DynamiApps ≤ 3.29.9 affected
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I. Basic Information for CVE-2026-18432

Vulnerability Information
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Vulnerability Title
Frontend Admin by DynamiApps <= 3.29.9 - Unauthenticated Privilege Escalation via 'item_id' Parameter
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Frontend Admin by DynamiApps 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Frontend Admin by DynamiApps是WordPress基金会开源的一款允许用户在网站前端管理后台内容的CMS插件。 WordPress Frontend Admin by DynamiApps 3.29.9及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于ActionUser::conditions_logic()函数将授权检查置于is_numeric()测试之后，导致当$user_id为非数字字符串时检查被跳过，攻击者可通过未验证的item_id参数传递特制值
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
shabti Frontend Admin by DynamiApps 0 ~ 3.29.9 -

II. Public POCs for CVE-2026-18432

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III. Intelligence Information for CVE-2026-18432

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Patches & Fixes for CVE-2026-18432 (4)

News Coverage for CVE-2026-18432 (1)

IV. Related Vulnerabilities

Same product: Frontend Admin by DynamiApps
Same vendor: shabti
Same weakness: CWE-269

V. Comments for CVE-2026-18432

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