CVE-2026-44177

Kirby is an open-source content management system. In versions 5.3.0 and above but prior to 5.4.1, Kirby did not correctly validate the provided user ID, resulting in a path traversal vulnerability. Version 5.3.0 introduced a performance improvement to the Users collection that loaded user object...

CVE-2026-44176

Kirby is an open-source content management system. Versions prior to 4.9.1 and 5.4.1 do not check the pages.access permission during page draft rendering. Permissions are defined for each user role in the user blueprint site/blueprints/users/.... It is also possible to customize the permissions f...

CVE-2026-44175

Kirby is an open-source content management system. In versions prior to 4.9.1 and 5.4.1, Kirby did not securely sanitize the contents of the list field on save, leaving it vulnerable to cross-site scripting XSS. Kirby's list field stores its formatted content as HTML, and unlike other field types...

CVE-2026-44175

Kirby has a stored XSS vulnerability in the list field prior to versions 4.9.1 and 5.4.1 due to server-side sanitization on save not being applied (HTML in list field not escaped without breaking formatting). The content is stored as HTML and could be sent via Kirby’s API bypassing the Panel, the...

CVE-2026-44175 Kirby: Cross-site scripting (XSS) from list field content in the site frontend

Kirby is an open-source content management system. In versions prior to 4.9.1 and 5.4.1, Kirby did not securely sanitize the contents of the list field on save, leaving it vulnerable to cross-site scripting XSS. Kirby's list field stores its formatted content as HTML, and unlike other field types...

CVE-2026-44176 Kirby: `pages.access` permission is not checked during rendering of page drafts

Kirby is an open-source content management system. Versions prior to 4.9.1 and 5.4.1 do not check the pages.access permission during page draft rendering. Permissions are defined for each user role in the user blueprint site/blueprints/users/.... It is also possible to customize the permissions f...

CVE-2026-44174

Kirby CMS (versions prior to 4.9.1 and 5.4.1) exposes REST API search and collection queries that did not validate model attributes, allowing authenticated users to invoke arbitrary model methods (e.g., password(), root(), loginPasswordless(), delete()) via collection endpoints. This can disclose...

CVE-2026-54004

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites with content.fileRedirects enabled could redirect unauthenticated clean file URL requests for files stored in top-level draft pages to physical media URLs without checking page access permissions or preview...

CVE-2026-54003

Kirby is an open-source content management system. Prior to 4.9.4 and from 5.4.4, Kirby sites with no configured user accounts that run on publicly accessible servers behind a reverse proxy setting the Forwarded, X-Client-IP, or X-Real-IP request header could allow remote attackers to install the...

CVE-2026-50188

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins using the Kirby Http Remote class, including Remote::request, Remote::get, and Remote::post, to send outgoing HTTP requests with untrusted data in the headers option could allow newline characters...

CVE-2026-49274

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using the pages field with roles that have the pages.access permission disabled allowed authenticated users to provide an inaccessible parent page or site to the page picker backend and confirm arbitrary page...

CVE-2026-49276

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using the writer field in any blueprint allowed a scripting link to be included as the target of a link or email link in writer mark components, making the target clickable by the user who entered it and...

CVE-2026-54005 Kirby: `pages.access` permission is not checked in the `site/find` REST API route

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites where a role has the pages.access permission disabled allowed authenticated users who know or guess page IDs or UUIDs to retrieve page information, including full content and metadata, for arbitrary published...

CVE-2026-54005

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites where a role has the pages.access permission disabled allowed authenticated users who know or guess page IDs or UUIDs to retrieve page information, including full content and metadata, for arbitrary published...

CVE-2026-50188 Kirby: Request header injection in `Http\Remote`

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins using the Kirby Http Remote class, including Remote::request, Remote::get, and Remote::post, to send outgoing HTTP requests with untrusted data in the headers option could allow newline characters...

CVE-2026-54004

CVE-2026-54004 affects Kirby CMS. Prior to version 4.9.4 and 5.4.4, when content.fileRedirects is enabled, clean file URLs for files stored in top-level draft pages could be redirected to physical media URLs without verifying draft page permissions or preview tokens, potentially disclosing draft ...

CVE-2026-49274 Kirby: `pages.access` permission is not checked in the pages picker for parent pages

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using the pages field with roles that have the pages.access permission disabled allowed authenticated users to provide an inaccessible parent page or site to the page picker backend and confirm arbitrary page...

CVE-2026-49274

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using the pages field with roles that have the pages.access permission disabled allowed authenticated users to provide an inaccessible parent page or site to the page picker backend and confirm arbitrary page...

CVE-2026-49274 Kirby: `pages.access` permission is not checked in the pages picker for parent pages

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using the pages field with roles that have the pages.access permission disabled allowed authenticated users to provide an inaccessible parent page or site to the page picker backend and confirm arbitrary page...

CVE-2026-54002 Kirby: Cross-site scripting (XSS) from incomplete HTML/XML sanitization in `Dom::sanitize()`

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and plugins that use the writer or list fields or call Dom::sanitize, Sane::sanitize, Sane::Html::sanitize, Sane::Svg::sanitize, Sane::Xml::sanitize, Sane::sanitizeFile, or file sanitizeContents with untruste...