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.
A Denial of Service vulnerability was identified in Moodle’s TeX formula editor. When rendering TeX content using mimetex, insufficient execution time limits could allow specially crafted formulas to consume excessive server resources. An authenticated user could abuse this behavior to degrade performance or cause service interruption.
A Denial-of-Service vulnerability exists in Moodle’s TeX formula editor due to missing execution time controls during TeX rendering with mimetex. An authenticated user can submit specially crafted TeX content that causes excessive CPU consumption, resulting in degraded performance or service outage. While confidentiality and integrity are not impacted, availability of the Moodle instance may be significantly affected.
A data exposure issue existed where user identifiers were visible in URLs during anonymous assignment submissions, contrary to expected anonymity protections. This could reveal internal IDs to unauthorized viewers.
A flaw was found in Moodle. A remote attacker could exploit a reflected Cross-Site Scripting (XSS) vulnerability in the policy tool return URL. This vulnerability arises from insufficient sanitization of URL parameters, allowing attackers to inject malicious scripts through specially crafted links. Successful exploitation could lead to information disclosure or arbitrary client-side script execution within the user's browser.
A flaw was found in Moodle. An open redirect vulnerability in the OAuth login flow allows a remote attacker to redirect users to attacker-controlled pages after they have successfully authenticated. This occurs due to insufficient validation of redirect parameters, which could lead to phishing attacks or information disclosure.
A flaw was discovered in Moodle. Additional checks were required to ensure that users can only access cohort data they are authorized to retrieve.
A flaw was found in Moodle. Insufficient capability checks in a messaging web service allowed users to view other users' names and online statuses.
A flaw was found in Moodle. Additional checks were required to prevent users from deleting course sections they did not have permission to modify.
A flaw was found in Moodle. The return URL in the policy tool required additional sanitizing to prevent a reflected Cross-site scripting (XSS) risk.
A flaw was found in Moodle. Insufficient capability checks made it possible for a user enrolled in a course to access some details, such as the full name and profile image URL, of other users they did not have permission to access.
A flaw was found in Moodle. This vulnerability allows unauthorized users to access and view RSS feeds due to insufficient capability checks.
A flaw has was found in Moodle where anonymous assignment submissions can be de-anonymized via search, revealing student identities.
A security vulnerability was discovered in Moodle that allows some users to access sensitive information about other students before they finish verifying their identities using two-factor authentication (2FA).
A flaw has been identified in Moodle where insufficient capability checks in certain grade reports allowed users without the necessary permissions to access hidden grades.
Additional checks were required to ensure trusttext is applied (when enabled) to glossary entries being restored.
Insufficient capability checks made it possible to disable badges a user does not have permission to access.
The drag-and-drop onto image (ddimageortext) question type required additional sanitizing to prevent a stored XSS risk.
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.
Separate Groups mode restrictions were not factored into permission checks before allowing viewing or deletion of responses in Feedback activities.
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.
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
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
Inadequate access control in Moodle LMS. This vulnerability could allow a local user with a student role to create arbitrary events intended for users with higher roles. It could also allow the attacker to add events to the calendar of all users without their prior consent.
A limited SQL injection risk was identified on the Mnet SSO access control page. This flaw affects Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8, 3.11 to 3.11.14, 3.9 to 3.9.21 and earlier unsupported versions.
Content on the groups page required additional sanitizing to prevent an XSS risk. This flaw affects Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8 and 3.11 to 3.11.14.
The course participation report required additional checks to prevent roles being displayed which the user did not have access to view.
Insufficient filtering of grade report history made it possible for teachers to access the names of users they could not otherwise access.