CVE-2025-26885: 
WordPress vulnerability analysis and mitigation

A Deserialization of Untrusted Data vulnerability was discovered in Brent Jett Assistant WordPress plugin affecting versions through 1.5.1. The vulnerability was disclosed on February 22, 2025, and assigned CVE-2025-26885. This security issue allows for Object Injection in the WordPress Assistant plugin (Patchstack).

The vulnerability has been classified as CWE-502 (Deserialization of Untrusted Data) with a CVSS v3.1 Base Score of 7.2 (HIGH). The attack vector requires high privileges but no user interaction, with the vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H indicating network accessibility, low attack complexity, and potential for high impacts on confidentiality, integrity, and availability (NVD).

The PHP Object Injection vulnerability could potentially allow malicious actors to execute code injection, SQL injection, path traversal, or denial of service attacks if a proper POP chain is present. The specific impact varies case by case, but the vulnerability is considered moderately dangerous and expected to become exploited (Patchstack).

Users are advised to update to version 1.5.1.1 or later which contains the fix for this vulnerability. Patchstack has issued a virtual patch to mitigate this issue by blocking potential attacks until users can update to the fixed version (Patchstack).

The vulnerability was initially reported by security researcher Phat RiO - BlueRock on January 20, 2025. Early warning was sent to Patchstack customers on February 22, 2025, before public disclosure on February 24, 2025 (Patchstack).