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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-16587 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.6.0/platforms/mailup/mailup.php#L375 Wordfence
https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.6.0/platforms/mailup/mailup.php#L411 Wordfence
https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.6.0/platforms/mailup/mailup.php#L51 Wordfence
https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.6.0/platforms/mailup/mailup.php#L98 Wordfence
https://plugins.trac.wordpress.org/changeset?reponame=&old=3621411%40advanced-form-integration&new=3621411%40advanced-form-integration Wordfence
https://www.wordfence.com/threat-intel/vulnerabilities/id/af913bb1-eff6-47cd-9471-f74bafda1e52?source=cve Wordfence

Weakness Enumeration

CWE-ID CWE Name Source
CWE-862 Missing Authorization Wordfence  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-16587
NVD Published Date:
07/28/2026
NVD Last Modified:
07/28/2026
Source:
Wordfence