CVE-2021-27522

8.8 highEPSS 1.1%

High (8.8) in learnsite project learnsite. 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.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWE: CWE-287
Published: 2021-04-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

learnsite_project:learnsite

References

https://github.com/WaterCountry/Learnsite/issues/1
https://github.com/WaterCountry/Learnsite/issues/1

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