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CVE-2011-4203

UnknownEPSS 1.10%

Last modified

CVE-2011-4203 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
1.10%

61.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MoodleMoodle1.9.1
MoodleMoodle1.9.2
MoodleMoodle1.9.3
MoodleMoodle1.9.4
MoodleMoodle1.9.5
MoodleMoodle1.9.6
MoodleMoodle1.9.7
MoodleMoodle1.9.8
MoodleMoodle1.9.9
MoodleMoodle1.9.10
MoodleMoodle1.9.11
MoodleMoodle1.9.12
MoodleMoodle1.9.13
MoodleMoodle1.9.14
MoodleMoodle2.0.0
MoodleMoodle2.0.1
MoodleMoodle2.0.2
MoodleMoodle2.0.3
MoodleMoodle2.0.4
MoodleMoodle2.0.5
MoodleMoodle2.1.0
MoodleMoodle2.1.1
MoodleMoodle2.1.2
MoodleMoodle2.2.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-4203?
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.
How severe is CVE-2011-4203?
Severity scoring for CVE-2011-4203 is pending analysis. The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.
How do I fix CVE-2011-4203?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-4203?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST