Moodle up to 5.1.0 Restore Interface code injection

Summaryinfo

A vulnerability was found in Moodle up to 5.1.0. It has been classified as critical. This affects an unknown part of the component Restore Interface. This manipulation causes code injection. This vulnerability is tracked as CVE-2025-67847. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Moodle up to 5.1.0. Affected by this vulnerability is an unknown code block of the component Restore Interface. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in Moodle. An attacker with access to the restore interface could trigger server-side execution of arbitrary code. This is due to insufficient validation of restore input, which leads to unintended interpretation by core restore routines. Successful exploitation could result in a full compromise of the Moodle application.

It is possible to read the advisory at access.redhat.com. This vulnerability is known as CVE-2025-67847 since 12/12/2025. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/31/2026). The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 297398 (Linux Distros Unpatched Vulnerability : CVE-2025-67847), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.1.0, 4.1.22, 4.4.12, 4.5.8, 5.0.4 or 5.1.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (297398). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Learning Management Software

Name

• Moodle

Version

• 4.0
• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.1.5
• 4.1.6
• 4.1.7
• 4.1.8
• 4.1.9
• 4.1.10
• 4.1.11
• 4.1.12
• 4.1.13
• 4.1.14
• 4.1.15
• 4.1.16
• 4.1.17
• 4.1.18
• 4.1.19
• 4.1.20
• 4.1.21
• 4.4.0
• 4.4.1
• 4.4.2
• 4.4.3
• 4.4.4
• 4.4.5
• 4.4.6
• 4.4.7
• 4.4.8
• 4.4.9
• 4.4.10
• 4.4.11
• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3
• 4.5.4
• 4.5.5
• 4.5.6
• 4.5.7
• 5.0
• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.1.0

License

• open-source

Website

• Product: https://moodle.org/

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

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