VULNERABILITY INTELLIGENCE

CVE-2011-4203

CVSS score5 MEDIUM
EPSS probability1.18%
CISA KEVNot currently listed
Published2011-12-22
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:P/A:N

Description

CRLF injection vulnerability in calendar/set.php in the Calendar component in Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, 2.1.x before 2.1.3, and 2.2 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via vectors involving the url variable.

Weakness classification

  • CWE-94: Improper Control of Generation of Code ('Code Injection')

Primary references