CVE-2026-40598: Improper Neutralization of Input During Web Page Generation

Mantis Bug Tracker MantisBT is an open source issue tracker. In versions 2.28.1 and below, improper escaping of the redirection page retrieved from the request's Referer header allows an attacker to inject HTML. While this is generally not directly actionable as modern browsers will URL-encode...

Mantis Bug Tracker security vulnerabilities

Mantis Bug Tracker MantisBT is an open-source bug tracker developed by Mantis Bug Tracker. Mantis Bug Tracker versions 2.28.1 and earlier have security vulnerabilities, which stem from improper escaping of redirect pages, potentially leading to HTML injection attacks. The following versions are...

CVE-2026-40597: Improper Neutralization of Input During Web Page Generation

Mantis Bug Tracker MantisBT is an open source issue tracker. In versions 2.28.1 and below, given any pre-existing XSS / HTML injection vulnerability, an attacker can bypass the Content Security Policy's script-src directive by uploading a crafted attachment to any issue that, when accessed via th...

Mantis Bug Tracker Security Feature Vulnerabilities

Mantis Bug Tracker MantisBT is an open-source bug tracker developed by Mantis Bug Tracker. Versions of Mantis Bug Tracker prior to 2.28.1 contained a security vulnerability related to the script-src directive, which allowed bypassing content security policies by uploading specially crafted...

CVE-2026-40596: Improper Neutralization of Input During Web Page Generation

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.11.0 through 2.28.1 allow any authenticated user to inject arbitrary HTML by updating their account's font family. Upon exploitation, an XSS payload would be reflected on every MantisBT page. Leveraging another vulnerability...

Mantis Bug Tracker Cross-Site Script Vulnerability

Mantis Bug Tracker MantisBT is an open-source bug tracker developed by Mantis Bug Tracker. Versions 2.11.0 to 2.28.1 of Mantis Bug Tracker contain a cross-site scripting vulnerability. This vulnerability stems from allowing any authenticated user to inject arbitrary HTML through the update accoun...

CVE-2026-40607: Improper Neutralization of Input During Web Page Generation

Mantis Bug Tracker MantisBT is an open source issue tracker. In versions 2.11.0 through 2.28.1, a Stored XSS vulnerability is caused by incorrect escaping of a saved filter's owner, allowing an attacker to inject arbitrary HTML on systems where $gshowuserrealname = ON. Note that By default, only...

Mantis Bug Tracker Cross-Site Script Vulnerability

Mantis Bug Tracker MantisBT is an open-source bug tracker developed by Mantis Bug Tracker. Versions 2.11.0 to 2.28.1 of Mantis Bug Tracker contain a cross-site scripting vulnerability. This vulnerability stems from improper escaping of the filter owner’s name, which may lead to stored-cross-site...

CVE-2026-39960

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and below contain flawed logic that causes improper escaping of a textarea custom field's contents in the Update Issue page, bugupdatepage.php allowing an attacker to inject HTML and, if CSP settings permit, execute...

CVE-2026-39960 MantisBT is Vulnerable to Stored XSS through Custom Field Textarea Values

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and below contain flawed logic that causes improper escaping of a textarea custom field's contents in the Update Issue page, bugupdatepage.php allowing an attacker to inject HTML and, if CSP settings permit, execute...

EUVD-2026-31192

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and below contain flawed logic that causes improper escaping of a textarea custom field's contents in the Update Issue page, bugupdatepage.php allowing an attacker to inject HTML and, if CSP settings permit, execute...

CVE-2026-39960

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and below contain flawed logic that causes improper escaping of a textarea custom field's contents in the Update Issue page, bugupdatepage.php allowing an attacker to inject HTML and, if CSP settings permit, execute...

CVE-2026-39960 MantisBT is Vulnerable to Stored XSS through Custom Field Textarea Values

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and below contain flawed logic that causes improper escaping of a textarea custom field's contents in the Update Issue page, bugupdatepage.php allowing an attacker to inject HTML and, if CSP settings permit, execute...

CVE-2026-34970

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and prior allow a bugnote author to access the note's Revisions page after losing access to the parent private issue. This issue has been fixed in version 2.28.2...

CVE-2026-34754

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and prior allow an authenticated user to upload attachments to private Issues they are not authorized to access. This issue has been fixed in version 2.28.2...

CVE-2026-34970: Exposure of Sensitive Information to an Unauthorized Actor

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and prior allow a bugnote author to access the note's Revisions page after losing access to the parent private issue. This issue has been fixed in version 2.28.2...

Mantis Bug Tracker (MantisBT) Access Control Vulnerability

Mantis Bug Tracker MantisBT is an open-source bug tracker developed by Mantis Bug Tracker. Versions of Mantis Bug Tracker prior to 2.28.1 contained an access control vulnerability. This vulnerability stemmed from allowing authenticated users to upload attachments to private issues that they did n...

CVE-2026-34754: Improper Access Control

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and prior allow an authenticated user to upload attachments to private Issues they are not authorized to access. This issue has been fixed in version 2.28.2...

Mantis Bug Tracker Cross-Site Script Vulnerability

Mantis Bug Tracker MantisBT is an open-source bug tracker developed by Mantis Bug Tracker. Versions of Mantis Bug Tracker 2.28.1 and earlier had a cross-site scripting vulnerability. This vulnerability stemmed from improper escaping of custom field contents in the update page, allowing attackers ...

CVE-2026-39960: Improper Neutralization of Input During Web Page Generation

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and below contain flawed logic that causes improper escaping of a textarea custom field's contents in the Update Issue page, bugupdatepage.php allowing an attacker to inject HTML and, if CSP settings permit, execute...