CVE-2025-30973: 
WordPress vulnerability analysis and mitigation

A Deserialization of Untrusted Data vulnerability was discovered in Codexpert, Inc CoSchool LMS affecting versions through 1.4.3. The vulnerability was reported on June 3, 2025, and publicly disclosed on July 7, 2025. This security issue was assigned CVE-2025-30973 and received a critical CVSS v3.1 base score of 9.8 (Patchstack).

The vulnerability is classified as a PHP Object Injection issue (CWE-502) that allows for the deserialization of untrusted data. The vulnerability is particularly severe with a CVSS v3.1 score of 9.8 (Critical), with the following vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. This indicates that the vulnerability can be exploited remotely with low attack complexity, requires no privileges or user interaction, and can result in high impacts to confidentiality, integrity, and availability (Patchstack).

The vulnerability could potentially allow 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 9.8 indicates that this vulnerability is considered highly dangerous and is expected to become mass exploited (Patchstack).

As of the disclosure, no official fix is available for this vulnerability. However, Patchstack has issued a virtual patch to mitigate this issue by blocking potential attacks until an official fix becomes available. Users are advised to implement the virtual patch immediately to protect their systems (Patchstack).