Vulnerability identifier: #VU16009

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-16854

CWE-ID: CWE-352

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description
The vulnerability allows a remote authenticated attacker to perform CSRF attack.

The weakness exists in the web-based management interface due to insufficient CSRF protections. A remote attacker can create a specially crafted HTML page or URL, trick the victim into visiting it, gain access to the system and perform arbitrary actions.

Mitigation
The vulnerability has been fixed in the versions 3.6, 3.5.3, 3.4.6, 3.3.9, 3.1.15.

Vulnerable software versions

Moodle: 3.1.0 - 3.1.14, 3.3.0 - 3.3.8, 3.4.0 - 3.4.5, 3.5.0 - 3.5.2

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External links
http://moodle.org/mod/forum/discuss.php?d=378731#p1527068

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.