Description yourls is vulnerable to Improper Restriction of Rendered UI Layers or Frames Remediation References CVE-2021-3734 Related Vulnerabilities WordPress Plugin WP Easy Gallery Cross-Site Scripting (4.1.4) WordPress Plugin Simple SEO Cross-Site Scripting (1.7.91) Moodle Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2016-9186) WordPress Plugin Users Ultra SQL Injection (1.3.58) WordPress Plugin CMP-Coming Soon & Maintenance by NiteoThemes Multiple Unspecified Vulnerabilities (4.0.9) Severity High Classification CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Tags Missing Update Known Vulnerabilities CWE-1021 CVE-2021-3734