CVE-2011-4203

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"448E5353-CD0E-407C-84F4-5E6D014A28FE", "vulnerable": true}, {"criteria": "cpe:2.3:a:moodle:moodle:2.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "18C6F348-DAE9-4440-8B3A-8D92ADC6606F", "vulnerable": true}, {"criteria": "cpe:2.3:a:moodle:moodle:2.1.1:*:*:*:*:*:*:*", "matchCriteriaId": "367537BF-CBDF-4CBB-91B4-6E5A567EF605", "vulnerable": true}, {"criteria": "cpe:2.3:a:moodle:moodle:2.1.2:*:*:*:*:*:*:*", "matchCriteriaId": "DABBF325-C48A-4838-AC5D-0565C78976CD", "vulnerable": true}, {"criteria": "cpe:2.3:a:moodle:moodle:2.2.0:*:*:*:*:*:*:*", "matchCriteriaId": "15A73CE2-73DA-4274-89E0-DD9A413ED17F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Vulnerabilidad de inyecci\u00f3n en CRLF en ficheros calendar/set.php en el componente Calendar en Moodle v1.9.x anteriores a v1.9.15, v2.0.x anteriores a v2.0.6, v2.1.x anteriores a v2.1.3, y v2.2 permiten a atacantes remotos injectar cabeceras HTTP de su elecci\u00f3n y realizar ataques de divisi\u00f3n de respuesta HTTP a trav\u00e9s de vectores de ataque en los que participa la variable de url."}], "id": "CVE-2011-4203", "lastModified": "2026-06-16T23:34:34.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2011-12-22T15:29:20.093", "references": [{"source": "cve@mitre.org", "tags": ["Exploit"], "url": "http://penturalabs.wordpress.com/2011/12/13/advisory-crlf-injection-vulnerability-in-moodle/"}, {"source": "cve@mitre.org", "url": "http://tracker.moodle.org/browse/MDL-24808"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "http://penturalabs.wordpress.com/2011/12/13/advisory-crlf-injection-vulnerability-in-moodle/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://tracker.moodle.org/browse/MDL-24808"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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