CVE-2025-53243: 
WordPress vulnerability analysis and mitigation

A Deserialization of Untrusted Data vulnerability (CVE-2025-53243) was discovered in emarket-design Employee Directory – Staff Listing & Team Directory Plugin for WordPress. The vulnerability affects versions through 4.5.3 and was disclosed on August 25, 2025. This security issue allows for Object Injection in the affected WordPress plugin (Patchstack).

The vulnerability has been assigned a CVSS v3.1 base score of 8.1 (High) with the following vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. The attack vector is Network-based, requires High attack complexity, needs No privileges, requires No user interaction, has Unchanged scope, and potentially impacts Confidentiality, Integrity, and Availability at High levels. The vulnerability is classified as CWE-502 (Deserialization of Untrusted Data) (NVD, AttackerKB).

The PHP Object Injection vulnerability could enable malicious actors to execute code injection, SQL injection, path traversal, and denial of service attacks if a proper POP chain is present. The high CVSS score of 8.1 indicates this is a severe vulnerability with potentially significant impact on affected systems (Patchstack).

As of the disclosure date, no official fix is available for this vulnerability. Patchstack has issued a virtual patch to mitigate the issue by blocking potential attacks until an official fix becomes available. Website administrators are advised to implement immediate mitigation measures (Patchstack).