CVE-2021-27522: Learnsite Project Learnsite

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Learnsite 1.2.5.0 contains a remote privilege escalation vulnerability in /Manager/index.aspx through the JudgIsAdmin() function. By modifying the initial letter of the key of a user cookie, the key of the administrator cookie can be obtained.

Affected products

Published 2021-04-08. Last modified 2026-06-17.