Maintenance
maintenance · plugin
Known security vulnerabilities for Maintenance. Find out in seconds which version runs on your site with WP Lens.
1 known vulnerabilities
latest Aug 23, 2021
Before you install
Known vulnerabilities fixed
- A fixed release exists for all 1 known record (latest 4.32).
Install the current version and keep it updated.
This assessment relies only on published vulnerability records and wordpress.org data; it does not review the code.
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Listed on wordpress.org · latest 4.32 · last updated Aug 16, 2026 · 1M+ installs
wordpress.org status checked on Nov 1, 2026
Vulnerabilities
- Medium 4.8
CVE-2021-24533admin→ 4.03
Maintenance < 4.03 - Authenticated Stored XSS
The access label is read from the record's own text (e.g. “subscriber+”: subscriber and above). When the text names no role, CVSS decides between “login required” and “high privilege”; no role name is invented. “Needs a click”: the attack depends on a logged-in user following a link (CSRF, reflected XSS).
Noroxi research
Our write-ups on vulnerabilities in this plugin: root cause and how to defend.
Oct 13, 2026 · 8 min read
Maintenance Plugin: Unauthenticated Maintenance-Mode Bypass
A client-set cookie is trusted as proof of access in the Maintenance plugin (1M+ installs), so any visitor can walk past the coming-soon wall. Root cause and fix.