Vulnerability identifier: #VU49969

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20184

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in grade related web services. A remote user with student access can view grades of other students.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Moodle: 3.10.0, 3.9.0 - 3.9.3, 3.8.0 - 3.8.6

---

External links
http://moodle.org/mod/forum/discuss.php?d=417167

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.