What is CVE-2021-27522?

CVE-2021-27522 is a high-severity vulnerability in Learnsite Project, classified under Improper Authentication. CVSS score: 8.8/10. Published 2021-04-08.

How severe is CVE-2021-27522?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Learnsite Project

CVE-2021-27522

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.

Vulnerability class: Broken Authentication

EPSS: 0.011 (62.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Learnsite_project Learnsite — versions 1.2.5.0
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-27522?: CVE-2021-27522 is a high-severity vulnerability in Learnsite Project, classified under Improper Authentication. CVSS score: 8.8/10. Published 2021-04-08.
How severe is CVE-2021-27522?: High severity. CVSS v3 base score is 8.8 out of 10.