CVE-2025-58592 is a deserialization of untrusted data vulnerability found in Cozmoslabs TranslatePress, a popular WordPress plugin used for multilingual website translation. The affected versions include all releases up to and including 2.10.2. The vulnerability arises because the plugin improperly handles serialized data inputs, allowing an attacker to inject malicious objects during the deserialization process. This object injection can lead to remote code execution (RCE), compromising the confidentiality, integrity, and availability of the affected systems. The vulnerability is exploitable over the network without requiring authentication or user interaction, but the attack complexity is rated high, indicating that exploitation requires specific conditions or advanced skills. The CVSS 3.1 base score is 8.1, with vector AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating a network attack vector, no privileges or user interaction needed, but high attack complexity and full impact on confidentiality, integrity, and availability. No public exploits or patches are currently available, but the vulnerability has been officially published and reserved since September 2025. This vulnerability poses a significant risk to websites relying on TranslatePress for multilingual content, as successful exploitation could lead to full system compromise or website defacement.

For European organizations, this vulnerability can have severe consequences, especially for those operating multilingual websites using TranslatePress. Exploitation could lead to unauthorized access to sensitive data, website defacement, or complete server takeover, disrupting business operations and damaging reputation. Given the plugin’s widespread use in WordPress sites, sectors such as e-commerce, government portals, and media outlets are particularly vulnerable. The high severity and network exploitability mean attackers can target these sites remotely, potentially affecting a large number of organizations simultaneously. Additionally, the lack of authentication requirements increases the risk of automated scanning and exploitation attempts. The impact extends to compliance risks under GDPR if personal data is compromised. European organizations with limited patch management capabilities or those slow to update plugins face increased exposure. The absence of known exploits in the wild currently provides a window for proactive mitigation but also suggests that attackers may develop exploits soon.

Organizations should prioritize updating TranslatePress to a patched version once released by Cozmoslabs. Until a patch is available, restrict access to the plugin’s endpoints by implementing IP whitelisting or VPN access where feasible. Deploy web application firewalls (WAFs) configured to detect and block malicious serialized payloads and object injection attempts. Conduct thorough code reviews and input validation on any custom integrations with TranslatePress to reduce attack surface. Monitor web server and application logs for unusual deserialization activity or unexpected errors. Employ runtime application self-protection (RASP) solutions to detect exploitation attempts in real time. Educate web administrators on the risks of deserialization vulnerabilities and the importance of timely plugin updates. Finally, maintain regular backups of website data and configurations to enable rapid recovery in case of compromise.