Vulnerability identifier: #VU48448

Vulnerability risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25700

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 some database module web services allowed students to add entries within groups they did not belong to. A remote user can bypass implemented security restrictions and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Moodle: 3.5.0 - 3.5.14, 3.7.0 - 3.7.8, 3.8.0 - 3.8.5, 3.9.0 - 3.9.2, 3.3 - 3.3.9, 3.6.0 - 3.6.10, 3.1.0 - 3.1.18, 3.4.0 - 3.4.9, 3.2.0 - 3.2.9, 3.0 - 3.0.10

---

External links
http://moodle.org/mod/forum/discuss.php?d=413938

---

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.