Vulnerability identifier: #VU19214

Vulnerability risk: Low

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

CVE-ID: CVE-2019-10189

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote authenticated user to change group permissions.

The vulnerability exists due to incorrect handling of group membership rights. A remote authenticated teacher in an assignment group can modify group overrides for other groups in the same assignment

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Moodle: 3.7.0 - 3.7.0 rc2, 3.6.0 - 3.6.4, 3.5.0 - 3.5.6, 3.4.0 - 3.4.9, 3.3.0 - 3.3.9, 3.2.0 - 3.2.9, 3.1.0 - 3.1.18, 3.0.0 - 3.0.10

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External links
http://moodle.org/mod/forum/discuss.php?d=388570

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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.