An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.

An XSS issue was discovered in MantisBT before 2.24.2. Improper escaping on view_all_bug_page.php allows a remote attacker to inject arbitrary HTML into the page by saving it into a text Custom Field, leading to possible code execution in the browser of any user subsequently viewing the issue (if CSP settings allow it).

MantisBT before 1.3.20 and 2.22.1 allows Post Authentication Command Injection, leading to Remote Code Execution.

The proj_doc_edit_page.php Project Documentation feature in MantisBT before 2.21.3 has a stored cross-site scripting (XSS) vulnerability, allowing execution of arbitrary code (if CSP settings permit it) after uploading an attachment with a crafted filename. The code is executed when editing the document's page.

The Timeline feature in my_view_page.php in MantisBT through 2.21.1 has a stored cross-site scripting (XSS) vulnerability, allowing execution of arbitrary code (if CSP settings permit it) after uploading an attachment with a crafted filename. The code is executed for any user having visibility to the issue, whenever My View Page is displayed.

An issue was discovered in MantisBT through 1.3.14, and 2.0.0. Using a crafted request on bug_report_page.php (modifying the 'm_id' parameter), any user with REPORTER access or above is able to view any private issue's details (summary, description, steps to reproduce, additional information) when cloning it. By checking the 'Copy issue notes' and 'Copy attachments' checkboxes and completing the clone operation, this data also becomes public (except private notes).

view_all_bug_page.php in MantisBT 2.10.0-development before 2018-02-02 allows remote attackers to discover the full path via an invalid filter parameter, related to a filter_ensure_valid_filter call in current_user_api.php.

MantisBT 2.10.0 allows local users to conduct SQL Injection attacks via the vendor/adodb/adodb-php/server.php sql parameter in a request to the 127.0.0.1 IP address. NOTE: the vendor disputes the significance of this report because server.php is intended to execute arbitrary SQL statements on behalf of authenticated users from 127.0.0.1, and the issue does not have an authentication bypass

A cross-site scripting (XSS) vulnerability in the Edit Filter page (manage_filter_edit page.php) in MantisBT 2.1.0 through 2.17.1 allows remote attackers (if access rights permit it) to inject arbitrary code (if CSP settings permit it) through a crafted project name.

A cross-site scripting (XSS) vulnerability in the Manage Filters page (manage_filter_page.php) in MantisBT 2.1.0 through 2.17.1 allows remote attackers (if access rights permit it) to inject arbitrary code (if CSP settings permit it) through a crafted project name.

A cross-site scripting (XSS) vulnerability in the View Filters page (view_filters_page.php) and Edit Filter page (manage_filter_edit_page.php) in MantisBT 2.1.0 through 2.17.0 allows remote attackers to inject arbitrary code (if CSP settings permit it) through a crafted PATH_INFO. NOTE: this vulnerability exists because of an incomplete fix for CVE-2018-13055.

An issue was discovered in manage_filter_edit_page.php in MantisBT 2.x through 2.15.0. A cross-site scripting (XSS) vulnerability in the Edit Filter page allows execution of arbitrary code (if CSP settings permit it) when displaying a filter with a crafted name (e.g., 'foobar" onclick="alert(1)').

A cross-site scripting (XSS) vulnerability in the View Filters page (view_filters_page.php) in MantisBT 2.1.0 through 2.15.0 allows remote attackers to inject arbitrary code (if CSP settings permit it) through a crafted PATH_INFO.

A cross-site scripting (XSS) vulnerability in the configuration report page (adm_config_report.php) in MantisBT 1.2.0rc1 before 1.2.14 allows remote authenticated users to inject arbitrary web script or HTML via a complex value.

A cross-site scripting (XSS) vulnerability in the configuration report page (adm_config_report.php) in MantisBT 1.2.13 allows remote authenticated users to inject arbitrary web script or HTML via a project name.

A cross-site scripting (XSS) vulnerability in MantisBT 1.2.14 allows remote attackers to inject arbitrary web script or HTML via a version, related to deleting a version.

MantisBT 1.2.12 before 1.2.15 allows authenticated users to by the workflow restriction and close issues.

An access control issue in MantisBT before 1.2.13 allows users with "Reporter" permissions to change any issue to "New".

MantisBT 1.2.x before 1.2.2 insecurely handles attachments and MIME types. Arbitrary inline attachment rendering could lead to cross-domain scripting or other browser attacks.

An issue was discovered in MantisBT before 2.24.5. It associates a unique cookie string with each user. This string is not reset upon logout (i.e., the user session is still considered valid and active), allowing an attacker who somehow gained access to a user's cookie to login as them.