CVE-2025-31927: 
WordPress vulnerability analysis and mitigation

A critical PHP Object Injection vulnerability (CVE-2025-31927) was discovered in themeton Acerola, affecting versions through 1.6.5. The vulnerability was reported on May 22, 2025, by Tran Nguyen Bao Khanh from VCI - VNPT Cyber Immunity. This unauthenticated vulnerability allows for deserialization of untrusted data, enabling object injection attacks (Patchstack).

The vulnerability is classified as a Deserialization of Untrusted Data (CWE-502) issue. It received a CVSS v3.1 base score of 9.8 (CRITICAL) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating network accessibility, low attack complexity, no privileges required, and no user interaction needed. The vulnerability affects the core functionality of the Acerola theme (Patchstack).

The vulnerability is considered highly dangerous and expected to become mass exploited. If successfully exploited, it could allow malicious actors to execute code injection, SQL injection, path traversal, and denial of service attacks if a proper POP chain is present (Patchstack).

Currently, no official fix is available for this vulnerability. However, Patchstack has issued a virtual patch to mitigate the issue by blocking potential attacks until an official fix becomes available. Users are advised to implement mitigation measures immediately (Patchstack).