CVE-2023-48776

Vulnerability

Overview

CVE-2023-48776 is a missing authorization vulnerability in the WordPress plugin canvasio3D Light (versions up to and including 2.5.0). The plugin fails to properly enforce access control checks, allowing exploitation of incorrectly configured security levels [1]. This broken access control issue means that higher-privileged actions can be performed without proper authorization or nonce token validation.

Exploitation

The vulnerability can be exploited by any unauthenticated user who can reach the WordPress installation running the affected plugin. Since the access control is missing entirely, attackers do not need to have any specific role, authentication, or network position. The attack surface is the WordPress administration interface or any frontend action exposed by the plugin that fails to verify permissions [1].

Impact

Successful exploitation allows an attacker to perform actions that should require higher privileges, such as modifying settings, accessing restricted data, or executing administrative functions. Given that this type of vulnerability is common in mass-exploit campaigns, it poses a risk to many websites irrespective of their traffic size [1].

Mitigation

Patchstack has disclosed this vulnerability and recommends updating the plugin to the latest patched version as immediate action. If updating is not possible, website owners should consult their hosting provider or developer for alternative mitigations [1].