OpenProject < 12.5.4 - Project Identifiers Exposure

OpenProject versions before 12.5.6 generate a publicly accessible robots.txt file revealing project identifiers, even if the instance is set to 'Login required', letting attackers gather project info, exploit requires no authentication. id: CVE-2023-33960 info: name: OpenProject 12.5.4 - Project...

CVE-2026-67527

OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/workpackages/id accepted links.fileLinks and allowed authenticated users with editworkpackages but without managefilelinks to resolve Storages::FileLink records by raw id, detach or hard-delete...

CVE-2026-67528

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/customoptions/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visiblecurrentuser, so authenticated non-admin users could...

CVE-2026-67529 OpenProject: Private work package subject/identity disclosure through the global Time Entries and Cost Entries APIs (linked work package rendered without visibility check)

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/timeentries and GET /api/v3/costentries rendered links.workPackage.title and links.workPackage.href through associatedresource in modules/costs/lib/api/v3/timeentries/timeentryrepresenter.rb and...

CVE-2026-67529 OpenProject: Private work package subject/identity disclosure through the global Time Entries and Cost Entries APIs (linked work package rendered without visibility check)

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/timeentries and GET /api/v3/costentries rendered links.workPackage.title and links.workPackage.href through associatedresource in modules/costs/lib/api/v3/timeentries/timeentryrepresenter.rb and...

CVE-2026-67528

OpenProject before 17.6.0 exposes sensitive admin_only custom option labels via GET /api/v3/custom_options/:id due to missing visible(current_user) checks when resolving by global numeric id. Authenticated non-admin users can enumerate option IDs and read restricted labels. The issue is fixed in ...

CVE-2026-67528 OpenProject: Improper Access Control through /api/v3/custom_options/:id via Path "id" leads to Sensitive Data Exposure

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/customoptions/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visiblecurrentuser, so authenticated non-admin users could...

EUVD-2026-51281

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/customoptions/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visiblecurrentuser, so authenticated non-admin users could...

CVE-2026-67528 OpenProject: Improper Access Control through /api/v3/custom_options/:id via Path "id" leads to Sensitive Data Exposure

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/customoptions/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visiblecurrentuser, so authenticated non-admin users could...

CVE-2026-67527 OpenProject: Improper Access Control through /api/v3/work_packages/<X.id> via PATCH parameter "fileLinks"

OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/workpackages/id accepted links.fileLinks and allowed authenticated users with editworkpackages but without managefilelinks to resolve Storages::FileLink records by raw id, detach or hard-delete...

CVE-2026-67527 OpenProject: Improper Access Control through /api/v3/work_packages/<X.id> via PATCH parameter "fileLinks"

OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/workpackages/id accepted links.fileLinks and allowed authenticated users with editworkpackages but without managefilelinks to resolve Storages::FileLink records by raw id, detach or hard-delete...

EUVD-2026-51280

OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/workpackages/id accepted links.fileLinks and allowed authenticated users with editworkpackages but without managefilelinks to resolve Storages::FileLink records by raw id, detach or hard-delete...

CVE-2026-67527

OpenProject prior to v17.6.0 is affected by an improper access control vulnerability in PATCH /api/v3/work_packages/{id} via the _links.fileLinks parameter.Authenticated users with edit_work_packages but without manage_file_links could resolve Storages::FileLink records by raw id, detach or hard-...

CVE-2026-52785

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is a SQL injection in timestamps functionality. OpenProject baseline comparison allows callers to request historic work-package attributes using the timestamps parameter. This vulnerability is fix...

CVE-2026-52779

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, a cross-project IDOR / authorization context confusion in the Calendar and Team Planner modules allows a user with management permissions in one project to delete public Calendar or Team Planner Queries...

CVE-2026-52781

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, the HTML sanitizer grants elements unrestricted data- attributes via :data wildcard. An attacker injects data-controller="poll-for-changes" into a work package description, causing Stimulus.js to mount ...

CVE-2026-52782

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is an IDOR through /projects//settings/projectstorages/ via PATCH parameter "storagesprojectstorageprojectfolderid" leads to Access to Unauthorized Resources. A project-admin in one project can...

CVE-2026-52783

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, OpenProject's Storages module writes the OneDrive/SharePoint userless OAuth accesstoken plaintext to Rails.cache under the deterministic key storage..httpxaccesstoken, repopulated continuously by an...

CVE-2026-52780

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, cache store poisoning leads to Remote Code Execution RCE. This vulnerability is fixed in 17.3.3 and 17.4.1...

CVE-2026-49355

OpenProject is open-source, web-based project management software. Prior to 17.4.0, GET /api/v3/meetings/:meetingid/agendaitems/:agendaitemid discloses private work package data from a linked work package that belongs to a private/inaccessible project. This vulnerability is fixed in 17.4.0...