GHSA-QJ6W-V29Q-4RGX MantisBT is Vulnerable to Stored XSS in Custom Field Textarea Values

Improper escaping of a textarea custom field's contents in the Update Issue page bugupdatepage.php allows an attacker to inject HTML and, if CSP settings permit, execute arbitrary JavaScript when the page is loaded. Impact Session theft leading to admin account takeover, full project data access....

Information Exposure

Overview mantisbt/mantisbt is a mantis bug tracker. Affected versions of this package are vulnerable to Information Exposure in the Revisions page for bugnotes after access to the parent private issue has been revoked. An attacker can obtain the private issue's ID and summary by accessing the...

MantisBT has an Authorization Bypass that Allows Uploading Attachments to Private Issues via REST API

Impact MantisBT allows an authenticated user to upload attachments to private Issues they are not authorized to access. Patches - b262b4d2835b81394d75356dead66e52a6275206 Workarounds None. Credits Thanks to Vishal Shukla for discovering and responsibly reporting the issue...

GHSA-H4X5-GVX6-3RWC MantisBT has an Authorization Bypass that Allows Uploading Attachments to Private Issues via REST API

Impact MantisBT allows an authenticated user to upload attachments to private Issues they are not authorized to access. Patches - b262b4d2835b81394d75356dead66e52a6275206 Workarounds None. Credits Thanks to Vishal Shukla for discovering and responsibly reporting the issue...

Information Exposure

Overview mantisbt/mantisbt is a mantis bug tracker. Affected versions of this package are vulnerable to Information Exposure in the attachment access process. An attacker can gain unauthorized access to attachments they previously uploaded by listing and downloading them from issues that have sin...

GHSA-RMP5-5JJ7-GMVF MantisBT has an authorization bypass that allows reading attachments after losing access to a private issue

MantisBT permits a user to list and download their own attachments from an Issue created by another user, even after that Issue becomes private and direct access to it is denied. Impact The loss of confidentiality caused by this vulnerability is minimal, considering that only the attachments that...

Insertion of Sensitive Information Into Sent Data

Overview mantisbt/mantisbt is a mantis bug tracker. Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data via the bugmonitoradd.php process. An attacker can gain unauthorized access to sensitive metadata and content of private issues by submitting a...

GHSA-GGW7-9675-6V4V MantisBT has an authorization bypass in private issue monitoring

Using a crafted POST request to bugmonitoradd.php, a user with project-level access can add themselves as a monitor for a private issue they do not have access to. Despite displaying an Access Denied error, the application accepts the request and creates a monitor relationship for the private...

Cross-site Scripting (XSS)

Overview mantisbt/mantisbt is a mantis bug tracker. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the bugreportpage.php process when cloning an issue from a different project, due to improper escaping of the source project name. An attacker with sufficient...

GHSA-FVJF-68WH-RWP2 MantisBT is Vulnerable to Stored HTML Injection/XSS in Clone Issue Form

When cloning an issue originating from a Project other than the current one, the clone form bugreportpage.php prepends the source Project name before the category selector without proper escaping, allowing an attacker able to to inject HTML if they can set the Project's name which typically...

Access Control Bypass

Overview mantisbt/mantisbt is a mantis bug tracker. Affected versions of this package are vulnerable to Access Control Bypass via insufficient access control checks in the ProjectUsersAddCommand process. An attacker can escalate their project-level privileges by submitting a forged higher...

MantisBT Vulnerable to Privilege Escalation from Manager to Administrator

Insufficient access control checks in ProjectUsersAddCommand used in manageprojuseradd.php and REST API endpoint PUT /project/id/users allows users having manageprojectthreshold access level manager by default to grant project-level administrator access to any user including themselves in any...

MantisBT Has Authorization Bypass in Global Profile Creation

MantisBT allows a low-privileged authenticated user having addprofilethreshold to create a global profile despite not having manageglobalprofilethreshold, by tampering with the userid parameter in a valid profile creation request. Impact Authentication bypass Patches -...

GHSA-68W5-W573-Q2R8 MantisBT Has Authorization Bypass in Global Profile Creation

MantisBT allows a low-privileged authenticated user having addprofilethreshold to create a global profile despite not having manageglobalprofilethreshold, by tampering with the userid parameter in a valid profile creation request. Impact Authentication bypass Patches -...

PT-2026-39889

Name of the Vulnerable Software and Affected Versions MantisBT affected versions not specified Description Lack of validation of the filter target parameter in the 'return dynamic filters.php' endpoint allows an attacker to inject arbitrary HTML when the target is a TEXTAREA custom field, leading...

PT-2026-39873

Name of the Vulnerable Software and Affected Versions Mantis Bug Tracker MantisBT versions 2.28.0 through 2.28.1 Description A low-privileged authenticated user with the add profile threshold permission can create a global profile even without the manage global profile threshold permission. This ...

PT-2026-39877

MantisBT permits a user to list and download their own attachments from an Issue created by another user, even after that Issue becomes private and direct access to it is denied. Impact The loss of confidentiality caused by this vulnerability is minimal, considering that only the attachments that...

PT-2026-39884

Name of the Vulnerable Software and Affected Versions MantisBT affected versions not specified Description Incorrect escaping of a saved filter's owner allows an attacker to inject arbitrary HTML on systems where the $g show user realname variable is set to ON, leading to Cross-site scripting XSS...

PT-2026-39900

Name of the Vulnerable Software and Affected Versions MantisBT affected versions not specified Description An attacker can execute code via stored cross-site scripting XSS by uploading a crafted XHTML attachment that references a JavaScript attachment. This is achieved by using the 'file...

GHSA-73VX-49MV-V8W5 MantisBT has Stored HTML Injection/XSS when displaying Tags in Timeline

Improper escaping of tag names retrieved from History in Timeline myviewpage.php allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript, when displaying a tag that has been renamed or deleted. Impact Cross-site scripting XSS. Patches...