Advisories

Moodle through 5.3.0, 5.2.4, 5.1.8, 5.0.11 and 4.5.15 Information Disclosure via core_grades_get_feedback

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Severity
medium
Date
Affecting
  • moodle >= 5.2.0, <= 5.2.4

  • moodle >= 5.1.0, <= 5.1.8

  • moodle >= 5.0.0, <= 5.0.11

  • moodle >= 4.2.0, <= 4.5.15

  • moodle 5.3.0

CWE
  • CWE-639 Authorization Bypass Through User-Controlled Key
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Abraxas Labs
Description
Moodle 4.2.0 through 4.5.15, 5.0.0 through 5.0.11, 5.1.0 through 5.1.8, 5.2.0 through 5.2.4, and 5.3.0 contain an information disclosure vulnerability in the core_grades_get_feedback web service. The service lacks group-membership and enrolment checks, so non-editing teachers can iterate userid values to read other groups' grade feedback and users' names and identity fields such as email.

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