CVE-2026-23646 OpenProject users can delete other user's session, causing them to be logged out

OpenProject is an open-source, web-based project management software. Users of OpenProject versions prior to 16.6.5 and 17.0.1 have the ability to view and end their active sessions via Account Settings → Sessions. When deleting a session, it was not properly checked if the session belongs to the...

CVE-2026-23646

OpenProject versions before 16.6.5 and 17.0.1 are affected. The vulnerability arises in session management: when a user deletes a session via DELETE /my/sessions/:id, the system did not verify that the session actually belonged to the requesting user. Because session IDs are incremental integers,...

CVE-2026-23625 OpenProject has stored XSS regression using attachments and script-src self

OpenProject is an open-source, web-based project management software. Versions 16.3.0 through 16.6.4 are affected by a stored cross-site scripting vulnerability in the Roadmap view. OpenProject’s roadmap view renders the “Related work packages” list for each version. When a version contains work...

CVE-2026-23625

OpenProject is an open-source, web-based project management software. Versions 16.3.0 through 16.6.4 are affected by a stored cross-site scripting vulnerability in the Roadmap view. OpenProject’s roadmap view renders the “Related work packages” list for each version. When a version contains work...

CVE-2026-23625

OpenProject CVE-2026-23625 affects versions 16.3.0–16.6.4. A stored XSS in the Roadmap view occurs when a version’s work packages include a subproject; the helper link_to_work_package renders package.project.to_s with html_safe, allowing HTML in subproject names to be injected. The issue is mitig...

CVE-2026-23625 OpenProject has stored XSS regression using attachments and script-src self

OpenProject is an open-source, web-based project management software. Versions 16.3.0 through 16.6.4 are affected by a stored cross-site scripting vulnerability in the Roadmap view. OpenProject’s roadmap view renders the “Related work packages” list for each version. When a version contains work...

CVE-2026-23625 OpenProject has stored XSS regression using attachments and script-src self

OpenProject is an open-source, web-based project management software. Versions 16.3.0 through 16.6.4 are affected by a stored cross-site scripting vulnerability in the Roadmap view. OpenProject’s roadmap view renders the “Related work packages” list for each version. When a version contains work...

EUVD-2026-3309

OpenProject is an open-source, web-based project management software. Versions 16.3.0 through 16.6.4 are affected by a stored cross-site scripting vulnerability in the Roadmap view. OpenProject’s roadmap view renders the “Related work packages” list for each version. When a version contains work...

PT-2026-3465

Name of the Vulnerable Software and Affected Versions OpenProject versions prior to 16.6.5 OpenProject versions prior to 17.0.1 Description OpenProject is a web-based project management software. Users of affected versions could potentially unauthenticate other users by iterating requests to the...

OpenProject security vulnerabilities

OpenProject is an open-source web-based project management software. Versions of OpenProject prior to 16.6.5 and 17.0.1 had security vulnerabilities. These vulnerabilities stemmed from the lack of verification for the user to which a session belonged during deletion, allowing unauthenticated user...

OpenProject cross-site scripting vulnerabilities

OpenProject is an open-source web-based project management software. Versions 16.3.0 to 16.6.4 of OpenProject contain cross-site scripting vulnerabilities. These vulnerabilities stem from the lack of escaping of user-controlled sub-project names in the roadmap view, which may lead to...

PT-2026-3464

Name of the Vulnerable Software and Affected Versions OpenProject versions 16.3.0 through 16.6.4 Description OpenProject is a web-based project management software. A stored cross-site scripting issue exists in the Roadmap view. The issue occurs when a version contains work packages from a...

OpenProject security vulnerabilities

OpenProject is an open-source web-based project management software. Versions of OpenProject prior to 17.0.1 and 16.6.5 had security vulnerabilities. These vulnerabilities stemmed from failed permission checks, which could allow users with viewing member permissions to enumerate all groups and...

PT-2026-3474

Name of the Vulnerable Software and Affected Versions OpenProject versions prior to 17.0.1 OpenProject versions prior to 16.6.5 Description OpenProject is a web-based project management software. A permission check failure in earlier versions allowed users with the 'View Members' permission in an...

CVE-2026-22602

OpenProject is an open-source, web-based project management software. Prior to version 16.6.2, a low‑privileged logged-in user can view the full names of other users. Since user IDs are assigned sequentially and predictably e.g., 1 to 1000, an attacker can extract a complete list of all users’ fu...

CVE-2026-22605

OpenProject is an open-source, web-based project management software. OpenProject versions prior to version 16.6.3, allowed users with the View Meetings permission on any project, to access meeting details of meetings that belonged to projects, the user does not have access to. This issue has bee...

CVE-2026-22604

OpenProject is an open-source, web-based project management software. For OpenProject versions from 11.2.1 to before 16.6.2, when sending a POST request to the /account/changepassword endpoint with an arbitrary User ID as the passwordchangeuserid parameter, the resulting error page would show the...

CVE-2026-22603

OpenProject is an open-source, web-based project management software. Prior to version 16.6.2, OpenProject’s unauthenticated password-change endpoint /account/changepassword was not protected by the same brute-force safeguards that apply to the normal login form. In affected versions, an attacker...

CVE-2026-22601

OpenProject is an open-source, web-based project management software. For OpenProject version 16.6.1 and below, a registered administrator can execute arbitrary command by configuring sendmail binary path and sending a test email. This issue has been patched in version 16.6.2...

CVE-2026-22600

OpenProject is an open-source, web-based project management software. A Local File Read LFR vulnerability exists in the work package PDF export functionality of OpenProject prior to version 16.6.4. By uploading a specially crafted SVG file disguised as a PNG as a work package attachment, an...