CVE-2025-32143: Deserialization Vulnerability in PickPlugins Accordion

Overview

In today’s post, we delve into a critical vulnerability that poses a significant risk to systems using PickPlugins Accordion. CVE-2025-32143, as it is officially designated, is a Deserialization of Untrusted Data vulnerability. This flaw can potentially lead to a full system compromise or significant data leakage, making it an issue of considerable concern to both developers and end-users alike. If you use Accordion from n/a through version 2.3.10, you’re affected by this vulnerability, and it’s crucial to understand the nature of the threat it poses.

Vulnerability Summary

CVE ID: CVE-2025-32143
Severity: High (8.8 CVSS Severity Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System compromise or data leakage

Affected Products

Product | Affected Versions

PickPlugins Accordion | n/a – 2.3.10

How the Exploit Works

The vulnerability, CVE-2025-32143, revolves around the deserialization of untrusted data. This means that an attacker could craft malicious data that, when deserialized by the PickPlugins Accordion, leads to an object injection. This object injection can allow the execution of arbitrary code, leading to a system compromise or data leakage.

Conceptual Example Code

Here is a conceptual example of how this vulnerability could be exploited. This sample HTTP request contains a malicious payload that, when deserialized by the vulnerable application, could lead to an object injection.

POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "{__type: 'java.lang.Runtime', serializedData: '...'}" }

Please note, the above code is a conceptual representation of how the exploit might work and not a real exploit code. The actual exploit will depend on the specific configurations and implementations of the PickPlugins Accordion.

Fix and Mitigation

Users of affected versions of PickPlugins Accordion are urged to apply the patch provided by the vendor as soon as possible. If the patch cannot be applied immediately, a temporary mitigation would involve using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to detect and block attempted exploits. However, these are just temporary measures, and applying the vendor patch is the ultimate solution to this vulnerability.