8.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2025-3642

CVE-2025-3642: Moodle has an authenticated remote code execution risk in the Moodle LMS EQUELLA repository

A flaw was found in Moodle. A remote code execution risk was identified in the Moodle LMS EQUELLA repository. By default, this was only available to teachers and managers on sites with the EQUELLA repository enabled.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-3642

CVE-2025-3642:

8.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
moodle/moodle	composer	< 4.1.18	4.1.18
moodle/moodle	composer	>= 4.3.0-beta, < 4.3.12	4.3.12
moodle/moodle	composer	>= 4.4.0-beta, < 4.4.8	4.4.8
moodle/moodle	composer	>= 4.5.0-beta, < 4.5.4	4.5.4

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability lies in the direct use of unserialize() on base64 decoded input within several methods of the repository_equella class in repository/equella/lib.php. The patch (commit 630fbf6230ee18d63ce69bea34173fb151b599da) replaces these direct calls with a new helper method unserialize_reference, which uses unserialize_object(). This change indicates that the previous direct unserialize() calls were susceptible to PHP object injection if the input (file reference) could be controlled by an attacker. The functions get_file, sync_reference, send_file, and get_reference_details all contained this vulnerable pattern before the patch and are therefore identified as vulnerable.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Protection Rules

WAF Rule

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Reasoning

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