Moodle <5.2.4 Unauthenticated Info Disclosure (H5P)
CVE-2026-123655 Published on November 6, 2026
Moodle: missing access checks on h5p content files
A flaw was found in Moodle. Insufficient access control checks on H5P content files allow unauthenticated remote attackers to view restricted materials, including content stored in the system context and files belonging to hidden or unavailable course modules. This issue results in unauthorized information disclosure of protected content.
Vulnerability Analysis
CVE-2026-123655 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Timeline
Reported to Red Hat.
Made public. 1 day later.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-123655 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-123655
Want to know whenever a new CVE is published for Moodle? stack.watch will email you.
