CVE-2026-34390

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and prior have a Privilege Escalation vulnerability where insufficient access control checks in ProjectUsersAddCommand manageprojuseradd.php allow users having manageprojectthreshold access level manager by default to...

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

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-2026-34463

Mantis Bug Tracker MantisBT is an open source issue tracker. Versions 2.28.1 and prior contain a Stored XSS vulnerability. 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...

CVE-2026-44655

Mantis Bug Tracker MantisBT is an open source issue tracker. From 1.3.0 to 2.28.1, unescaped Project Name allows an attacker that can set it which typically requires manager or administrator access level to inject HTML in Move Attachments admin page. This vulnerability is fixed in 2.28.2...

CVE-2026-41897

Mantis Bug Tracker MantisBT is an open source issue tracker. From 1.0.0 to 2.28.1, lack of validation of filtertarget parameter on returndynamicfilters.php normally used as an AJAX in View Issues Page allows an attacker to inject arbitrary HTML if the target is a TEXTAREA custom field. This...

CVE-2026-42071

Summary: CVE-2026-42071 affects MantisBT, specifically versions 2.23.0 through 2.28.1, where a missing authorization check in the file visibility function allows any authenticated user (REPORTER+) to download attachments from private bugnotes via REST API GET /api/rest/issues/{id}/files and SOAP ...

EUVD-2026-33027

Mantis Bug Tracker MantisBT is an open source issue tracker. From 2.23.0 to 2.28.1, a missing authorization check in MantisBT's file visibility function allows any authenticated user REPORTER+ to download attachments on private bugnotes they should not be able to access, via the REST API endpoint...

CVE-2026-44655

Mantis Bug Tracker MantisBT is an open source issue tracker. From 1.3.0 to 2.28.1, unescaped Project Name allows an attacker that can set it which typically requires manager or administrator access level to inject HTML in Move Attachments admin page. This vulnerability is fixed in 2.28.2...

CVE-2026-44655 MantisBT: Stored XSS on Move Attachments Admin Page

Mantis Bug Tracker MantisBT is an open source issue tracker. From 1.3.0 to 2.28.1, unescaped Project Name allows an attacker that can set it which typically requires manager or administrator access level to inject HTML in Move Attachments admin page. This vulnerability is fixed in 2.28.2...

CVE-2026-41897 MantisBT: Reflected XSS in Rendering Dynamic Custom Textarea Field

Mantis Bug Tracker MantisBT is an open source issue tracker. From 1.0.0 to 2.28.1, lack of validation of filtertarget parameter on returndynamicfilters.php normally used as an AJAX in View Issues Page allows an attacker to inject arbitrary HTML if the target is a TEXTAREA custom field. This...

EUVD-2026-33024

Mantis Bug Tracker MantisBT is an open source issue tracker. From 1.0.0 to 2.28.1, lack of validation of filtertarget parameter on returndynamicfilters.php normally used as an AJAX in View Issues Page allows an attacker to inject arbitrary HTML if the target is a TEXTAREA custom field. This...

CVE-2026-40607

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...

EUVD-2026-31495

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...

CVE-2026-40598

CVE-2026-40598 affects MantisBT (Mantis Bug Tracker). In versions 2.28.1 and earlier, improper escaping of the redirection page (constructed from the Referer header) allows an attacker to inject HTML, which can lead to cross-site scripting (XSS) in certain server configurations where the cache is...

CVE-2026-40598 MantisBT has Potential Referer-Based Reflected HTML Injection / XSS in Tag Update Page

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...

CVE-2026-40597

CVE-2026-40597 affects MantisBT 2.28.1 and earlier. A pre‑existing XSS/HTML injection vulnerability can be chained with a crafted attachment uploaded to an issue; when downloaded via file_download.php, the attachment can be served with a valid JavaScript MIME type, bypassing CSP script-src and ex...

EUVD-2026-31496

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...

CVE-2026-40596 MantisBT is vulnerable to XSS and potential account takeover via user font family preference update

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...

EUVD-2026-31492

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...