Moodle Project up to 5.3.0 Gradebook get_gradeitems.php core_grades_get_gradeitems improper authorization

Summaryinfo

A vulnerability marked as problematic has been reported in Moodle Project Moodle up to 4.5.15/5.0.11/5.1.8/5.2.4/5.3.0. Affected is the function core_grades_get_gradeitems of the file get_gradeitems.php of the component Gradebook. The manipulation leads to improper authorization. This vulnerability is traded as CVE-2026-119556. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Moodle Project Moodle up to 4.5.15/5.0.11/5.1.8/5.2.4/5.3.0 and classified as problematic. This issue affects the function core_grades_get_gradeitems of the file get_gradeitems.php of the component Gradebook. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality. The summary by CVE is:

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 a missing capability check in the core_grades_get_gradeitems web service that allows enrolled students to view hidden grade items. Authenticated course users can call the AJAX or mobile web service to list hidden grade item ids, names, and categories that the gradebook conceals from them.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-119556 since 10/30/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/30/2026). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

By approaching the search of inurl:get_gradeitems.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Project Management Software

Vendor

• Moodle Project

Name

• Moodle

Version

• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3
• 4.5.4
• 4.5.5
• 4.5.6
• 4.5.7
• 4.5.8
• 4.5.9
• 4.5.10
• 4.5.11
• 4.5.12
• 4.5.13
• 4.5.14
• 4.5.15
• 5.0
• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8
• 5.0.9
• 5.0.10
• 5.0.11
• 5.1
• 5.1.0
• 5.1.1
• 5.1.2
• 5.1.3
• 5.1.4
• 5.1.5
• 5.1.6
• 5.1.7
• 5.1.8
• 5.2
• 5.2.0
• 5.2.1
• 5.2.2
• 5.2.3
• 5.2.4
• 5.3.0

License

• open-source

CPE 2.3info

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CPE 2.2info

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