Moodle up to 3.9.11/3.10.8/3.11.4 Calendar Event authorization

Summaryinfo

A vulnerability identified as critical has been detected in Moodle up to 3.9.11/3.10.8/3.11.4. Affected is an unknown function of the component Calendar Event Handler. This manipulation causes authorization. This vulnerability is handled as CVE-2022-0333. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Moodle up to 3.9.11/3.10.8/3.11.4 (Learning Management Software) and classified as critical. Affected by this vulnerability is some unknown functionality of the component Calendar Event Handler. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 01/26/2022. The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2022-0333 since 01/21/2022. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/05/2025).

The vulnerability scanner Nessus provides a plugin with the ID 261262 (Linux Distros Unpatched Vulnerability : CVE-2022-0333), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (261262). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Learning Management Software

Name

• Moodle

Version

• 3.9.0
• 3.9.1
• 3.9.2
• 3.9.3
• 3.9.4
• 3.9.5
• 3.9.6
• 3.9.7
• 3.9.8
• 3.9.9
• 3.9.10
• 3.9.11
• 3.10.0
• 3.10.1
• 3.10.2
• 3.10.3
• 3.10.4
• 3.10.5
• 3.10.6
• 3.10.7
• 3.10.8
• 3.11.0
• 3.11.1
• 3.11.2
• 3.11.3
• 3.11.4

License

• open-source

Website

• Product: https://moodle.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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