Vulnerability in Apcu Manager
CVE-2026-10083
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 name created by another APCu Manager WordPress plugin before 4.5.0 from an unauthenticated request) are output without escaping and execute arbitrary JavaScript in the session of an administrator viewing the page.
EPSS: 0.002 (10.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Unknown Apcu Manager — versions 0
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-10083?
- CVE-2026-10083 is a high-severity vulnerability in Apcu Manager, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 7.5/10. Published 2026-06-29.
- How severe is CVE-2026-10083?
- High severity. CVSS v3 base score is 7.5 out of 10.