CVE-2025-67576: 
WordPress vulnerability analysis and mitigation

CVE-2025-67576 is a Missing Authorization vulnerability in the QuantumCloud Simple Link Directory WordPress plugin that allows unauthenticated attackers to exploit incorrectly configured access control security levels. It affects all versions of the plugin from n/a through 8.8.3. The vulnerability was published on December 9, 2025, and was assigned by Patchstack. It carries a CVSS v3.1 base score of 5.3 (Medium) (Feedly, Patchstack).

The root cause is classified as CWE-862 (Missing Authorization), meaning the plugin fails to properly verify whether a requesting user has the necessary permissions before performing certain actions. The attack vector is network-based, requires no authentication, no user interaction, and low attack complexity, making it trivially exploitable by any remote attacker. The vulnerability falls under the broader category of Broken Access Control, where restricted functionality or data can be accessed without proper authorization checks (Feedly).

Successful exploitation results in a limited confidentiality impact — attackers can access information that should be restricted, though integrity and availability are not affected. The scope is unchanged, meaning the impact is confined to the vulnerable plugin's context within the WordPress installation. While the individual impact is moderate, exposure of sensitive link directory data or plugin configuration details could aid further reconnaissance or targeted attacks against the site (Feedly).

No public proof-of-concept exploit code or evidence of active in-the-wild exploitation has been reported for CVE-2025-67576 as of the available data. The EPSS score is approximately 0.04%, indicating a low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been identified (Feedly).

Users should update the Simple Link Directory plugin to a version beyond 8.8.3 as soon as a patched release is made available by QuantumCloud. In the interim, site administrators should consider disabling the plugin if it is not critical to operations, or restricting access to the WordPress site using a web application firewall (WAF) to limit exposure. Monitoring plugin update channels and the Patchstack advisory page for patch availability is recommended (Patchstack).