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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 ke...
CVE-2021-27522 · published 5 years ago
Summary
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.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| learnsite_project | learnsite |
1.2.5.0 cpe:2.3:a:learnsite_project:learnsite:1.2.5.0:*:*:*:*:*:*:* |
Original advisory text
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 ke...
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.
References
- https://github.com/WaterCountry/Learnsite/issues/1 Exploit Issue Tracking Third Party Advisory
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Type
CWE-287Improper Authentication
Timeline
Published8 Apr 2021
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2021-27522 · NVD
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