Vulnerability identifier: #VU26117

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1754

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the grade history report does not respect Separate groups mode in the course settings. A remote authenticated attacker viewing the grade history report without the "access all groups" capability can view sensitive information from other groups.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Moodle: 3.5.0 - 3.5.10, 3.6.0 - 3.6.8, 3.7.0 - 3.7.4, 3.8.0 - 3.8.1

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External links
http://moodle.org/mod/forum/discuss.php?d=398350

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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.