A CPT Advanced Custom Post Type Plugin up to 2.0.63 on WordPress subscriber.php injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in A CPT Advanced Custom Post Type Plugin up to 2.0.63. This impacts an unknown function of the file subscriber.php. This manipulation causes injection. This vulnerability appears as CVE-2026-32563. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in A CPT Advanced Custom Post Type Plugin up to 2.0.63 and classified as critical. Affected by this vulnerability is an unknown functionality of the file subscriber.php. The manipulation with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Subscriber PHP Object Injection in ACPT (Pro) - Custom Post Types Plugin for WordPress <= 2.0.63 versions.

It is possible to read the advisory at patchstack.com. This vulnerability is known as CVE-2026-32563 since 03/12/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/24/2026). The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

By approaching the search of inurl:subscriber.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• A CPT

Name

• Advanced Custom Post Type Plugin

Version

• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7
• 2.0.8
• 2.0.9
• 2.0.10
• 2.0.11
• 2.0.12
• 2.0.13
• 2.0.14
• 2.0.15
• 2.0.16
• 2.0.17
• 2.0.18
• 2.0.19
• 2.0.20
• 2.0.21
• 2.0.22
• 2.0.23
• 2.0.24
• 2.0.25
• 2.0.26
• 2.0.27
• 2.0.28
• 2.0.29
• 2.0.30
• 2.0.31
• 2.0.32
• 2.0.33
• 2.0.34
• 2.0.35
• 2.0.36
• 2.0.37
• 2.0.38
• 2.0.39
• 2.0.40
• 2.0.41
• 2.0.42
• 2.0.43
• 2.0.44
• 2.0.45
• 2.0.46
• 2.0.47
• 2.0.48
• 2.0.49
• 2.0.50
• 2.0.51
• 2.0.52
• 2.0.53
• 2.0.54
• 2.0.55
• 2.0.56
• 2.0.57
• 2.0.58
• 2.0.59
• 2.0.60
• 2.0.61
• 2.0.62
• 2.0.63

CPE 2.3info

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CPE 2.2info

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