Virtual Robots.txt
pc-robotstxt · plugin
Known security vulnerabilities for Virtual Robots.txt. 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 12, 2021
Listed on wordpress.org · latest 1.10 · last updated Aug 20, 2026 · 40K+ installs
wordpress.org status checked on Oct 8, 2026
Vulnerabilities
- Critical 9.8
CVE-2021-28121unauthenticated
Virtual Robots.txt before 1.10 does not block HTML tags in the robots.txt field.
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).