Moodle: matrix user/power level management not always working as expected with suspended users

A flaw was found in moodle. Matrix room membership and power levels are incorrectly applied and revoked for suspended Moodle users.

Moodle: authorization headers preserved between "emulated redirects"

A flaw was found in moodle. The cURL wrapper in Moodle strips HTTPAUTH and USERPWD headers during emulated redirects, but retains other original request headers, so HTTP authorization header information could be unintentionally sent in requests to redirect URLs.

Moodle: lack of access control when using external methods for quiz overrides

A flaw was found in moodle. External API access to Quiz can override contained insufficient access control.

Moodle: user information visibility control issues in gradebook reports

A flaw was found in moodle. Some hidden user profile fields are visible in gradebook reports, which could result in users without the "view hidden user fields" capability having access to the information.

Moodle: admin presets export tool includes some secrets that should not be exported

A flaw was found in moodle. When creating an export of site administration presets, some sensitive secrets and keys are not being excluded from the export, which could result in them unintentionally being leaked if the presets are shared with a third party.

Moodle: lfi vulnerability when restoring malformed block backups

A flaw was found in moodle. A local file may include risks when restoring block backups.

Moodle: csrf risk in feedback non-respondents report

The bulk message sending feature in Moodle's Feedback module's non-respondents report had an incorrect CSRF token check, leading to a CSRF vulnerability.

Moodle: idor in badges allows deletion of arbitrary badges

A vulnerability was found in Moodle. Insufficient capability checks made it possible to delete badges that a user does not have permission to access.

Moodle: cache poisoning via injection into storage

To address a cache poisoning risk in Moodle, additional validation for local storage was required.

Moodle: remote code execution via calculated question types

A flaw was found in Moodle. Additional restrictions are required to avoid a remote code execution risk in calculated question types. Note: This requires the capability to add/update questions.

moodle: authenticated LFI risk in some misconfigured shared hosting environments via modified mod_wiki backup

In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user with both access to restore wiki modules and direct access to the web server outside of the Moodle webroot could execute a local file include.

moodle: authenticated LFI risk in some misconfigured shared hosting environments via modified mod_data backup

In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user with both access to restore database activity modules and direct access to the web server outside of the Moodle webroot could execute a local file include.

moodle: authenticated LFI risk in some misconfigured shared hosting environments via modified mod_workshop backup

In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user with both access to restore workshop modules and direct access to the web server outside of the Moodle webroot could execute a local file include.

moodle: authenticated LFI risk in some misconfigured shared hosting environments via modified mod_feedback backup

In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user with both access to restore feedback modules and direct access to the web server outside of the Moodle webroot could execute a local file include.

The Chat activity in Moodle 4.3.3 allows students to insert a potentially unwanted HTML A element or IMG element, or HTML content that leads to a performance degradation. NOTE: the vendor's Using_Chat page says "If you know some HTML code, you can use it in your text to do things like insert images, play sounds or create different coloured and sized text." This page also says "Chat is due to be removed from standard Moodle."

moodle: A Cross-Site Scripting (XSS) vulnerability in "?lang" parameter

A Cross-Site Scripting (XSS) vulnerability exists in the way MOODLE 3.10.9 handles user input within the "GET /?lang=" URL parameter.

moodle: HTTP authorization header is preserved between "emulated redirects"

The cURL wrapper in Moodle retained the original request headers when following redirects, so HTTP authorization header information could be unintentionally sent in requests to redirect URLs.

A blind Server-Side Request Forgery (SSRF) vulnerability was found in Moodle. This flaw exists due to insufficient validation of user-supplied input in LTI provider library. The library does not utilise Moodle's inbuilt cURL helper, which resulted in a blind SSRF risk. An attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems. This vulnerability allows a remote attacker to perform SSRF attacks.

The stored-XSS vulnerability was discovered in Moodle which exists due to insufficient sanitization of user-supplied data in several "social" user profile fields. An attacker could inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

A reflected cross-site scripting vulnerability was discovered in Moodle. This flaw exists due to insufficient sanitization of user-supplied data in policy tool. An attacker can trick the victim to open a specially crafted link that executes an arbitrary HTML and script code in user's browser in context of vulnerable website. This vulnerability may allow an attacker to perform cross-site scripting (XSS) attacks to gain access potentially sensitive information and modification of web pages.