CVE-2026-15354

CVE-2026-15354

The ACPT (Premium) plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.0.66. This is due to missing authorization in the `submit()` function, which allows unauthenticated form submissions to control the target user ID before calling `wp_update_user()`. This makes it possible for unauthenticated attackers to overwrite any WordPress user's email address and password, including an administrator's, and take over the account. Successful exploitation requires a public ACPT user form that permits anonymous submissions.

Vulnerability class: Privilege Escalation

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-15354?
CVE-2026-15354 is a critical-severity vulnerability, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2026-09-04.
How severe is CVE-2026-15354?
Critical severity. CVSS v3 base score is 9.8 out of 10.