CVE-2025-58640: 
WordPress vulnerability analysis and mitigation

A Stored Cross-Site Scripting (XSS) vulnerability has been identified in MatrixAddons Document Engine WordPress plugin through version 1.2. The vulnerability was discovered by Peter Thaleikis and disclosed on September 3, 2025. This security issue affects the Document Engine plugin's web page generation functionality due to insufficient input sanitization and output escaping (Rapid7, Patchstack).

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation) with a CVSS v3.1 base score of 6.5 (Medium). The attack vector is Network-based (AV:N), with Low attack complexity (AC:L), requiring Low privileges (PR:L) and User interaction (UI:R). The scope is Changed (S:C) with Low impact on Confidentiality, Integrity, and Availability (NVD).

The vulnerability allows authenticated attackers with contributor-level access or above to inject arbitrary web scripts into pages. These malicious scripts will execute whenever a user accesses the injected page, potentially leading to unauthorized data access, session hijacking, or other client-side attacks (Rapid7).

Users are advised to update to Document Engine version 1.3 or later, which contains the fix for this vulnerability. The security issue is considered to have a low severity impact and is unlikely to be exploited, but updating is recommended as a security best practice (Patchstack).