A flaw was found in Moodle. The XML grade import feature lacks proper Cross-Site Request Forgery (CSRF) token validation. By tricking an authenticated user with grade management permissions into visiting a malicious webpage, an attacker can trigger unauthorized requests on the victim's behalf. This flaw allows a remote attacker to set or overwrite student grades without authorization.

A flaw was found in Moodle. Insufficient escaping of the username on the password reset page allowed a minor cross-site scripting (XSS) risk if an unauthenticated user was tricked into opening a crafted password reset link. The reporter states this did not affect authenticated user sessions; that disclaimer is reflected in the impact assessment here.

A flaw was found in Moodle. Insufficient escaping in templates used to display forum posts resulted in a cross-site scripting (XSS) risk, allowing a stored script to execute in the browser of another user who views the affected forum post.

A flaw was found in Moodle. The manual enrolment management page did not correctly observe the disabled state of the manual enrolment plugin, allowing direct access to the page when the plugin was disabled and no longer linked from the UI. The relevant enrolment capability was still required to access the page, limiting the practical impact.

A flaw was found in Moodle. Due to a missing capability check, a low-privileged authenticated user can trigger the recalculation of grade penalties without holding the required permissions. This issue allows unauthorized users to modify grade penalty records, potentially altering student assessment scores.

A flaw was found in Moodle. When enrolling a user into a course while assigning them to a group, the application does not verify whether the selected group actually belongs to that course. An authenticated user with teacher privileges could exploit this flaw to add users to groups within courses they do not have authorization to access.

A flaw was found in Moodle. An authenticated attacker can supply an improperly validated audience class name to the Report Builder component, allowing arbitrary class instantiation. This vulnerability enables the unauthorized creation of internal program objects, which may result in unexpected application behavior.

A flaw was found in Moodle. An incorrect capability check in the grade web service allows an authenticated student to access profile information of other students enrolled in the same course that they should not have permission to view. This issue leads to unauthorized information disclosure.

A flaw was found in Moodle. Incorrect handling of IPv4-mapped IPv6 addresses within the URL downloader's host-blocking logic allows an authenticated remote user to bypass blocked-host restrictions. By supplying a crafted URL, an attacker can induce the server to make requests to restricted destinations, leading to Server-Side Request Forgery (SSRF).

A flaw was found in Moodle. The XML grade import functionality, which allows setting or overwriting of student grades, did not include the token required to prevent a cross-site request forgery (CSRF) risk, allowing an attacker to overwrite grades on behalf of a logged-in victim who visits a malicious page.

A flaw was found in Moodle. Missing capability checks made it possible for a low-privileged authenticated user to trigger grade penalty recalculation without holding the capability normally required to do so.

A flaw was found in Moodle. When enrolling a user into a course while selecting a group, a check that the selected group actually belonged to that course was missing, allowing a teacher to add users to groups in courses the teacher could not otherwise access.

A flaw was found in Moodle. Insufficient escaping of the username on the password reset page allowed a minor cross-site scripting (XSS) risk if an unauthenticated user was tricked into opening a crafted password reset link. The reporter states this did not affect authenticated user sessions; that disclaimer is reflected in the impact assessment here.

A flaw was found in Moodle's grade web service. An incorrect capability check allowed a student to access profile information of other students enrolled in the same course, which they would not otherwise have access to.

A flaw was found in Moodle. A SQL injection risk was identified in a question bank web service, allowing unsanitized input to reach a database query. The advisory does not state the exact capability required to call the affected web service function; this draft assumes it requires an elevated (teacher-level) role rather than being reachable by a basic authenticated user.

A flaw was found in Moodle. Insufficient escaping in templates used to display forum posts resulted in a cross-site scripting (XSS) risk, allowing a stored script to execute in the browser of another user who views the affected forum post.

A flaw was found in Moodle's URL downloader. Incorrect handling of IPv4-mapped IPv6 addresses in the host-blocking logic allows an authenticated user to bypass some blocked-host restrictions, resulting in a server-side request forgery (SSRF) risk when the downloader fetches a crafted URL. No further impact beyond partial blocklist bypass has been demonstrated.

Moodle LMS 4.0 contains a cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting payloads through the search parameter. Attackers can inject JavaScript code via the search field in course/search.php to execute arbitrary scripts in users' browsers and steal session cookies.

Cross Site Scripting vulnerability in Moodle CMS v3.10 allows a remote attacker to execute arbitrary code via the Field Name (name parameter) of a new activity.

Moodle OpenAI Chat Block plugin 3.0.1 (2025021700) suffers from an Insecure Direct Object Reference (IDOR) vulnerability due to insufficient validation of the blockId parameter in /blocks/openaichat/api/completion.php. An authenticated student can impersonate another user's block (e.g., administrator) and send queries that are executed with that block's configuration. This can expose administrator-only Source of Truth entries, alter model behavior, and potentially misuse API resources.

In Moodle before 3.8.2, 3.7.5, 3.6.9 and 3.5.11, users viewing the grade history report without the 'access all groups' capability were not restricted to viewing grades of users within their own groups.

Tags not expected to be visible to a user could still be discovered by them via the tag search page or in the tags block.

The drag-and-drop onto image (ddimageortext) question type required additional sanitizing to prevent a stored XSS risk.

Separate Groups mode restrictions were not factored into permission checks before allowing viewing or deletion of responses in Feedback activities.

Insufficient capability checks made it possible to disable badges a user does not have permission to access.

Additional checks were required to ensure trusttext is applied (when enabled) to glossary entries being restored.

Insufficient checks in a web service made it possible to add comments to the comments block on another user's dashboard when it was not otherwise available (e.g., on their profile page).

MSA-24-0004: Forum export did not respect activity group settings

Description: Separate Groups mode restrictions were not honoured when performing a forum export, which would export forum data for all groups. By default this only provided additional access to non-editing teachers. Issue summary: Forum export did not respect activity group settings Severity/Risk: Minor Versions affected: 4.3 to 4.3.2, 4.2 to 4.2.5, 4.1 to 4.1.8 and earlier unsupported versions Versions fixed: 4.3.3, 4.2.6 and 4.1.9 Reported by: Leon Stringer Issue no.: MDL-80504 CVE identifier: Pending Changes (master): http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-80504

MSA-24-0003: H5P attempts report did not respect activity group settings

Description: Separate Groups mode restrictions were not honoured in the H5P attempts report, which would display users from other groups. By default this only provided additional access to non-editing teachers. Issue summary: H5P attempts report did not respect activity group settings Severity/Risk: Minor Versions affected: 4.3 to 4.3.2, 4.2 to 4.2.5, 4.1 to 4.1.8 and earlier unsupported versions Versions fixed: 4.3.3, 4.2.6 and 4.1.9 Reported by: Leon Stringer Issue no.: MDL-80501 CVE identifier: Pending Changes (master): http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-80501

MSA-24-0002: Forum search accepted random parameters in its URL

Description: The URL parameters accepted by forum search were not limited to the allowed parameters. Issue summary: Forum search accepted random parameters in its URL Severity/Risk: Minor Versions affected: 4.3 to 4.3.2, 4.2 to 4.2.5, 4.1 to 4.1.8 and earlier unsupported versions Versions fixed: 4.3.3, 4.2.6 and 4.1.9 Reported by: Piotr Widak Issue no.: MDL-69774 CVE identifier: Pending Changes (master): http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-69774