WordPress APCu Manager plugin < 4.5.0 - Unauthenticated Stored XSS via Cache Key Pollution vulnerability

Unauthenticated Stored XSS via Cache Key Pollution vulnerability discovered by Alessandro Greco aka Aleff, Giovanbattista Ianni University of Calabria - UNICAL in WordPress Plugin APCu Manager versions 4.5.0...

CVE-2026-10083 APCu Manager < 4.5.0 - Unauthenticated Stored XSS via Cache Key Pollution

The APCu Manager WordPress plugin before 4.5.0 does not escape APCu object-cache keys before rendering them in an admin-area page, leading to a Stored Cross-Site Scripting vulnerability. When a persistent object cache is enabled, cache keys derived from unsanitised user input e.g. a transient nam...

CVE-2026-10083 APCu Manager < 4.5.0 - Unauthenticated Stored XSS via Cache Key Pollution

The APCu Manager WordPress plugin before 4.5.0 does not escape APCu object-cache keys before rendering them in an admin-area page, leading to a Stored Cross-Site Scripting vulnerability. When a persistent object cache is enabled, cache keys derived from unsanitised user input e.g. a transient nam...

CVE-2026-10083

The CVE concerns the APCu Manager WordPress plugin prior to version 4.5.0. The root cause is that APCu object-cache keys are not escaped before rendering in an admin page, enabling a Stored XSS when a persistent object cache is used. Cache keys derived from unsanitised user input (e.g., a transie...