Improve SEO
improveseo · plugin
Known security vulnerabilities for Improve SEO. Find out in seconds which version runs on your site with WP Lens.
1 known vulnerabilities
1 critical · 1 exploitable without logging in · latest Aug 4, 2026
Before you install
Use with care
- 1 record needing no login published in the last two years.
If you install it, keep auto-updates on and monitor the site: when a new record appears you need to update quickly.
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 2.0.13 · last updated Aug 28, 2026 · 10+ installs
wordpress.org status checked on Oct 19, 2026
Vulnerabilities
- Critical 9.8
CVE-2026-16618unauthenticated≤ 2.0.11
ImproveSEO <= 2.0.11 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execution
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).