Cross-site scripting in Moodle - CVE-2017-2645
Published: March 26, 2017 / Updated: January 16, 2023
Vulnerability identifier: #VU39378
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2017-2645
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via attachments to evidence of prior learning. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
Moodle
Fedora
moodle
Fedora
moodle
How to mitigate CVE-2017-2645
Install update from vendor's website.
moodle - addressed in versions 2.7.19-1.el6, 3.1.5-1.el7, 3.1.5-1.fc24, 3.1.5-1.fc25, 3.2.2-1.fc26