Input validation error in Moodle - CVE-2011-4586
Published: July 20, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43836
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-4586
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: moodle.org
Affected software:
Moodle
Moodle
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to manipulate data.
CRLF injection vulnerability in calendar/set.php in the Calendar subsystem in Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.
How to mitigate CVE-2011-4586
Install update from vendor's website.