Stored Cross-Site Scripting Vulnerability in APCu Manager Plugin for WordPress
CVE-2026-10083

Currently unrated

Key Information:

Vendor

WordPress
Status
Apcu Manager
Vendor
CVE Published:
29 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-10083?

The APCu Manager plugin for WordPress, prior to version 4.5.0, can lead to a Stored Cross-Site Scripting vulnerability due to the improper handling of APCu object-cache keys. When persistent object caching is enabled, cache keys derived from unsanitized user input can be rendered unescaped on admin-area pages. This vulnerability allows malicious JavaScript to be executed in an administrator's session when viewing specific pages, potentially compromising the security of the WordPress installation.

Affected Version(s)

APCu Manager 0 < 4.5.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-10083 - Proof of Concept

References

https://wpscan.com/vulnerability/e591b3f3-6e21-44f7-b374-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alessandro Greco aka Aleff
WPScan
.