VDB-360812 · CVE-2026-7647 · EUVD-2026-26750

Cozmoslabs Profile Builder Pro Plugin up to 3.14.5 on WordPress AJAX maybe_unserialize args deserialization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Cozmoslabs Profile Builder Pro Plugin up to 3.14.5 on WordPress and classified as problematic. Affected by this issue is the function maybe_unserialize of the component AJAX Handler. Such manipulation of the argument args leads to deserialization. This vulnerability is uniquely identified as CVE-2026-7647. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cozmoslabs Profile Builder Pro Plugin up to 3.14.5 on WordPress. Affected by this issue is the function maybe_unserialize of the component AJAX Handler. The manipulation of the argument args with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The Profile Builder Pro plugin for WordPress is vulnerable to PHP Object Injection in all versions up to and including 3.14.5. This is due to the use of PHP's maybe_unserialize() function on the attacker-controlled 'args' POST parameter within the wppb_request_users_pins_action_callback() AJAX handler, which lacked any nonce verification, type checking, or input validation before deserialization. Because the handler was registered with both wp_ajax_ and wp_ajax_nopriv_ hooks, it was reachable by completely unauthenticated users. This makes it possible for unauthenticated attackers to inject arbitrary PHP objects into application memory.

The weakness was disclosed by Mattia Brollo. The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-7647 since 05/01/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 3.14.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-26750). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

WordPress Plugin

Vendor

Cozmoslabs

Name

Profile Builder Pro Plugin

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.1
CNA Vector (Wordfence): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Profile Builder Pro Plugin 3.14.5

Timelineinfo

05/01/2026 CVE reserved
05/02/2026 +1 days Advisory disclosed
05/02/2026 +0 days VulDB entry created
05/03/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: wordfence.com
Researcher: Mattia Brollo
Status: Confirmed

CVE: CVE-2026-7647 (🔒)
GCVE (CVE): GCVE-0-2026-7647
GCVE (VulDB): GCVE-100-360812
EUVD: 🔒

Entryinfo

Created: 05/02/2026 08:23
Updated: 05/03/2026 05:33
Changes: 05/02/2026 08:23 (68), 05/03/2026 05:33 (1)
Complete: 🔍
Cache ID: 216::103