Vulnerability Details CVE-2011-4587
lib/moodlelib.php in Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 does not properly handle certain zero values in the password policy, which makes it easier for remote attackers to obtain access by leveraging the possible existence of user accounts that have unchangeable blank passwords.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.021
EPSS Ranking 79.0%
CVSS Severity
CVSS v2 Score 6.8
Products affected by CVE-2011-4587
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cpe:2.3:a:moodle:moodle:1.9.1
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cpe:2.3:a:moodle:moodle:1.9.10
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cpe:2.3:a:moodle:moodle:1.9.11
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cpe:2.3:a:moodle:moodle:1.9.12
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cpe:2.3:a:moodle:moodle:1.9.13
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cpe:2.3:a:moodle:moodle:1.9.14
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cpe:2.3:a:moodle:moodle:1.9.2
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cpe:2.3:a:moodle:moodle:1.9.3
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cpe:2.3:a:moodle:moodle:1.9.4
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cpe:2.3:a:moodle:moodle:1.9.5
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cpe:2.3:a:moodle:moodle:1.9.6
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cpe:2.3:a:moodle:moodle:1.9.7
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cpe:2.3:a:moodle:moodle:1.9.8
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cpe:2.3:a:moodle:moodle:1.9.9
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cpe:2.3:a:moodle:moodle:2.0.0
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cpe:2.3:a:moodle:moodle:2.0.1
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cpe:2.3:a:moodle:moodle:2.0.2
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cpe:2.3:a:moodle:moodle:2.0.3
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cpe:2.3:a:moodle:moodle:2.0.4
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cpe:2.3:a:moodle:moodle:2.0.5
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cpe:2.3:a:moodle:moodle:2.1.0
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cpe:2.3:a:moodle:moodle:2.1.1
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cpe:2.3:a:moodle:moodle:2.1.2