CVE-2015-0214: message/externallib.php in Moodle through 2.5.9, 2.6.x before 2.6.7, 2.7.x before 2.7.4, and 2.8.x before 2...

Security readout for executives and security teams

This Moodle issue lets a logged-in user bypass a site setting that disables messaging by making a web-services request. Business impact is mainly policy, privacy, and user-communication control failure, not system takeover based on the available sources. Exposure is limited to Moodle sites on the listed versions where authenticated users can access relevant web-service functionality. Public or large user-base learning portals have higher operational concern because many low-privilege users may hold valid accounts. Prioritize remediation during the next normal security maintenance window, faster for public Moodle sites or environments with strict messaging restrictions. This is not evidenced as actively exploited, but it directly weakens an administrative control. Mitigation focus: Upgrade affected Moodle 2.6.x, 2.7.x, and 2.8.x branches to fixed releases or later.; Move Moodle 2.5.x deployments off affected versions per Moodle guidance.; Review Moodle advisory and MDL-48329 commit references for vendor-specific remediation details..

Prepared

Jun 13, 2026, 22:39 UTC (UTC+00:00)

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