Threat intelligence

Frontend Admin by DynamiApps <= 3.29.10 - Authenticated (Contributor+) Stored Cross-Site Scripting

CVE-2026-66638 · acf-frontend-form-element

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Acf Frontend Form Element at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Frontend Admin by DynamiApps <= 3.29.10 - Authenticated (Contributor+) Stored Cross-Site Scripting
Affected software: acf-frontend-form-element(Plugin)
Affected versions: ≤ 3.29.10
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-66638
Published: 18 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory d7285cfb-faba-4769-8f2e-9e14e6af604d). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Acf Frontend Form Element version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Acf Frontend Form Element advisoriesBack to catalog