#VU39806 Improper Neutralization of Special Elements in Output Used by a Downstream Component in Moodle - CVE-2016-5013

Published: 2017-01-20 | Updated: 2020-08-08

Vulnerability identifier: #VU39806

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-5013

CWE-ID: CWE-74

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

In Moodle 2.x and 3.x, text injection can occur in email headers, potentially leading to outbound spam.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Moodle: 2.8 - 2.8.12, 2.9 - 2.9.6, 3.0 - 3.0.4, 3.1.0

External links
https://www.securityfocus.com/bid/92040
https://moodle.org/mod/forum/discuss.php?d=336698

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.