CVE-2026-15354Network attack vector

Unauthenticated account takeover via unchecked form user ID

Published Sep 4, 2026 · Updated Sep 4, 2026

Privilege escalation in Mauro Cassani ACPT (Premium) 2.0.66 and earlier allows remote attackers to take over any WordPress account. The submit() form handler accepts an attacker-controlled target user ID from an anonymous submission and passes it to wp_update_user() without authorization, permitting the account's email address and password to be overwritten. Exploitation requires a public ACPT user form that permits anonymous submissions; targeting an administrator account grants control of the WordPress site.

CVSS severity9.8
Critical
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Mauro Cassani ACPT (Premium) 2.0.66 and earlier allows remote attackers to take over any WordPress account. The submit() form handler accepts an attacker-controlled target user ID from an anonymous submission and passes it to wp_update_user() without authorization, permitting the account's email address and password to be overwritten. Exploitation requires a public ACPT user form that permits anonymous submissions; targeting an administrator account grants control of the WordPress site.

The record

CVE
CVE-2026-15354
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
Mauro Cassani
Product
ACPT (Premium)
Classifications
CWE-269, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.0.66

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mauro Cassani · ACPT (Premium)version=0 <=2.0.66

Published CVSS scores

9.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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