CVE-2025-32607: A Critical Deserialization of Untrusted Data Vulnerability in WpBookingly

Overview

The vulnerability, identified as CVE-2025-32607, is a severe cybersecurity flaw found in the magepeopleteam’s WpBookingly product. It is a deserialization of untrusted data vulnerability that may potentially lead to system compromise or data leakage. This vulnerability is particularly concerning because of its high severity rating of 9.8 on the Common Vulnerability Scoring System (CVSS), indicating a high level of potential impact.
All WpBookingly users, particularly those running versions up to 1.2.0, are susceptible to this vulnerability. Therefore, it is necessary to understand the nature of this vulnerability, how it can be exploited, and what measures can be taken to mitigate it to protect your systems and data.

Vulnerability Summary

CVE ID: CVE-2025-32607
Severity: Critical (9.8 CVSS)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

WpBookingly | n/a through 1.2.0

How the Exploit Works

The vulnerability is a deserialization of untrusted data flaw. In this context, an attacker can take advantage of the process that WpBookingly uses to convert complex data types into a format that can be stored or transmitted and reassembled later. An attacker can inject malicious serialized objects into the system, which, when deserialized, can lead to code execution, system compromise or data leakage.

Conceptual Example Code

Here is a conceptual example of how a malicious actor might exploit the vulnerability:

POST /wpbookingly/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "serialized_object": "rO0ABXNyABdqYXZhLnV0aWwucHJlZnMuUHJlZmVyZW5jZXMkSW5qZWN0aW9uQXR0YWNrAAAAAAAAAAECAAFMAANtYXAudAASTGphdmEvbGFuZy9TdHJpbmc7eHAAAAAAAAB9AAAAAAQAAAAB0ABZ5b3VyX21hbGljaW91c19jb2RlX2hlcmU=" }

In this example, the attacker sends a malicious serialized object (`serialized_object`) to a vulnerable endpoint of WpBookingly.

Recommended Mitigation

To mitigate this threat, users of the affected versions of WpBookingly should apply the vendor-supplied patch as soon as it becomes available. In the meantime, a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) could be used as a temporary mitigation measure. These systems can help detect and block attempts to exploit the vulnerability.