This vulnerability involves deserialization of untrusted data in the PickPlugins Post Grid and Gutenberg Blocks plugin (up to version 2.3.11). The flaw allows an attacker with low privileges and network access to perform object injection, potentially leading to full compromise of the system's confidentiality, integrity, and availability. The CVSS 3.1 base score is 8.8, reflecting high impact and ease of exploitation. No patch or mitigation details are provided in the available data.

Successful exploitation can lead to complete compromise of the affected system, impacting confidentiality, integrity, and availability. The attacker requires only low privileges and network access, with no user interaction needed, increasing the risk of exploitation. No known exploits in the wild have been reported so far.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the affected plugin and monitor for suspicious activity related to object injection attempts. Avoid using affected versions (up to 2.3.11) if possible.