CVE-2011-4587: n/a vulnerability

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 proper...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 00:09 UTC (UTC+00:00)

Security readout for executives and security teams

Older Moodle sites may have mishandled password policy values of zero, leaving some accounts with blank passwords that users could not change. If such accounts exist, an attacker could gain access more easily. The issue is historical and version-specific, but any still-running affected Moodle instance deserves prompt review. Exposure is most likely in legacy Moodle deployments, especially externally reachable learning portals still on the listed pre-fix versions or downstream packages not carrying the Moodle or Debian fixes. Treat as a cleanup priority for any legacy Moodle service. Escalate if the site is internet-facing, handles student or staff data, or still permits local account login. Mitigation focus: Upgrade Moodle to 1.9.15, 2.0.6, 2.1.3, or later as applicable.; Apply fixed downstream packages referenced by Debian DSA-2421 where relevant.; Review Moodle and distributor advisories for supported upgrade paths..

Prepared: Jun 24, 2026, 12:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 20, 2012, 10:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

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2Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=761248CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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