SEPTEMBER 19, 2026
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Case File

CVE-2026-16587

MEDIUM · CVSS 4.3 EPSS 0.21% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-28 · Last synced 2026-08-27

CyberRota Analysis

AI-Generated

The Advanced Form Integration plugin for WordPress is vulnerable to an authorization bypass, allowing authenticated users with subscriber-level access or higher to overwrite MailUp OAuth tokens stored in the site's configuration. This could lead to attackers hijacking form submission data or disrupting the integration entirely. WordPress site administrators using this plugin should prioritize patching to mitigate the risk of unauthorized data access and potential service disruption.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-16587
Severity
MEDIUM
CVSS
4.3
EPSS
0.21%
WordPress

Original NVD Description

The Advanced Form Integration — Connect Forms to 200+ Apps plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.6.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to overwrite the site's stored MailUp OAuth tokens in the adfoin_mailup_keys option with attacker-controlled tokens, hijacking future form-submission data to a MailUp account they control or nulling the tokens to break the integration entirely. This is exploitable by any authenticated user who can reach /wp-admin/profile.php, as admin_init fires for all logged-in users visiting any wp-admin page.