CVE-2025-47683: 
WordPress vulnerability analysis and mitigation

A Deserialization of Untrusted Data vulnerability (CVE-2025-47683) was discovered in Florent Maillefaud's WP Maintenance WordPress plugin, affecting versions through 6.1.9.7. The vulnerability was disclosed on May 7, 2025, and allows for PHP Object Injection in the affected plugin (Wiz, NVD).

The vulnerability has been assigned a CVSS v3.1 base score of 7.2 (High) with the vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. The issue is classified under CWE-502 (Deserialization of Untrusted Data) and requires high privileges for exploitation but does not require user interaction and can be accessed over the network (NVD, Wiz).

If exploited successfully, this vulnerability could allow an attacker to execute code injection, SQL injection, path traversal, or denial of service attacks, contingent upon the presence of a suitable POP chain. The vulnerability affects the confidentiality, integrity, and availability of the system with high severity ratings for each (Patchstack).

The vulnerability has been fixed in version 6.1.9.8 of the WP Maintenance plugin. Users are recommended to update to version 6.1.9.8 or later to remove the vulnerability. Patchstack users can enable auto-update for vulnerable plugins (Patchstack).