Findings

CVE-2026-30884

mdjnelson/moodle-mod_customcert is a Moodle plugin for creating dynamically generated certificates with complete customization via the web browser.

Published Mar 18, 2026 · updated Jun 17, 2026

mdjnelson/moodle-mod_customcert is a Moodle plugin for creating dynamically generated certificates with complete customization via the web browser. Prior to versions 4.4.9 and 5.0.3, a teacher who holds in any single course can read and silently overwrite certificate elements belonging to any other course in the Moodle installation. The callback and the web service both fail to verify that the supplied belongs to the authorized context, enabling cross-course information disclosure and data tampering. Versions 4.4.9 and 5.0.3 fix the issue.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 18, 2026 · NIST NVD

    Detected

    mdjnelson/moodle-mod_customcert is a Moodle plugin for creating dynamically generated certificates with complete customization via the web browser. Prior to versions 4.4.9 and 5.0.3, a teacher who holds in any single course can read and silently overwrite certificate elements belonging to any other course in the Moodle installation. The callback and the web service both fail to verify that the sup

  2. Jun 17, 2026 · NIST NVD

    Updated

    mdjnelson/moodle-mod_customcert is a Moodle plugin for creating dynamically generated certificates with complete customization via the web browser. Prior to versions 4.4.9 and 5.0.3, a teacher who holds in any single course can read and silently overwrite certificate elements belonging to any other course in the Moodle installation. The callback and the web service both fail to verify that the sup

Sources

  • CVE.orgVulnerability recordCVE-2026-30884

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-30884

    mdjnelson/moodle-mod_customcert is a Moodle plugin for creating dynamically generated certificates with complete customization via the web browser. Prior to versions 4.4.9 and 5.0.3, a teacher who holds in any single course can read and silently overwrite

    nvd.nist.gov

References