CVE-2025-60234 is a vulnerability identified in the designthemes Single Property product, versions up to and including 2.8. The issue stems from insecure deserialization of untrusted data, which allows an attacker to perform object injection attacks. Deserialization vulnerabilities occur when applications deserialize data from untrusted sources without proper validation, enabling attackers to manipulate serialized objects to execute arbitrary code or alter application logic. In this case, the vulnerability permits an attacker with low privileges (PR:L) to remotely exploit the system over the network (AV:N) without requiring user interaction (UI:N). The scope is unchanged (S:U), but the impact is high across confidentiality, integrity, and availability (C:H/I:H/A:H), as indicated by the CVSS 3.1 score of 8.8. This means an attacker could potentially execute arbitrary code, access sensitive data, or disrupt services. The vulnerability affects a widely used WordPress theme/plugin in the real estate domain, which is often integrated into websites handling sensitive client and property data. No patches or known exploits are currently reported, but the vulnerability is publicly disclosed and should be considered exploitable. The lack of authentication requirement and ease of exploitation make this a critical threat vector for organizations relying on this software.

For European organizations, the impact of CVE-2025-60234 can be significant, especially for those in the real estate, property management, and related sectors that utilize the designthemes Single Property product. Exploitation could lead to unauthorized access to sensitive client information, including personal and financial data, resulting in data breaches and regulatory non-compliance under GDPR. Integrity of property listings and transaction data could be compromised, undermining trust and causing financial losses. Availability impacts could disrupt business operations and online services, affecting customer experience and revenue. Additionally, compromised systems could be leveraged as pivot points for broader network intrusions or ransomware attacks. The vulnerability’s remote exploitability without user interaction increases the risk of automated attacks and widespread exploitation across European targets. Organizations may face reputational damage, legal penalties, and operational downtime if this vulnerability is exploited.

1. Immediate mitigation should focus on restricting network access to the affected Single Property installations, such as limiting inbound traffic to trusted IPs or VPNs. 2. Monitor web server and application logs for unusual deserialization patterns or suspicious payloads indicative of exploitation attempts. 3. Implement Web Application Firewalls (WAFs) with custom rules to detect and block malicious serialized object payloads targeting this vulnerability. 4. Disable or restrict features in the Single Property plugin that handle serialized data if possible until a patch is available. 5. Engage with designthemes or trusted security vendors to obtain or develop patches or updates addressing this vulnerability. 6. Conduct thorough security assessments and penetration testing focused on deserialization attack vectors in the affected environment. 7. Educate IT and security teams about the risks of insecure deserialization and ensure secure coding practices are followed in customizations. 8. Prepare incident response plans specifically for deserialization attacks to enable rapid containment and remediation if exploitation occurs.