Winter: Authenticated IDOR in backend FileUpload widget allows cross-user access to attachment metadata

Impact The backend FileUpload form widget trusted an attacker-controlled fileid POST parameter when resolving the attachment it operates on. The lookup FileUpload::getFileRecord resolved the posted id against the global systemfiles table without verifying that the file belonged to the widget's ow...

GHSA-3277-H8G9-QJ5F Winter: Authenticated IDOR in backend FileUpload widget allows cross-user access to attachment metadata

Impact The backend FileUpload form widget trusted an attacker-controlled fileid POST parameter when resolving the attachment it operates on. The lookup FileUpload::getFileRecord resolved the posted id against the global systemfiles table without verifying that the file belonged to the widget's ow...

CVE-2026-54623

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.8, the moveplugin endpoint in cms/admin/placeholderadmin.py accepts an attacker-controlled pluginparent value without rejecting a plugin’s own identifier or a descendant...

CVE-2026-54625

django CMS is a content management system powered by Django. Prior to 5.0.8 and in 5.1.0a1, the django CMS page cache in cms/cache/page.py ignores request headers declared by plugins through getvarycacheon. The pagecachekey function includes the cache prefix, site, language, path, and timezone bu...

EUVD-2026-63571

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. From 5.0.8 until 5.0.9, ContentRenderer.renderplaceholder in cms/pluginrendering.py can pass stored, attacker-controlled values to ContentRenderer.renderexception when plugin rendering fail...

CVE-2026-75526

django CMS versions 5.0.8 through 5.0.9 contain a stored XSS in the edit-mode plugin exception rendering path. When a plugin raises during rendering, ContentRenderer.render_placeholder in cms/plugin_rendering.py passes attacker-controlled values (from get_short_description(), the exception messag...

CVE-2026-75526 django CMS: Stored XSS in edit-mode plugin exception rendering

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. From 5.0.8 until 5.0.9, ContentRenderer.renderplaceholder in cms/pluginrendering.py can pass stored, attacker-controlled values to ContentRenderer.renderexception when plugin rendering fail...

CVE-2026-75526 django CMS: Stored XSS in edit-mode plugin exception rendering

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. From 5.0.8 until 5.0.9, ContentRenderer.renderplaceholder in cms/pluginrendering.py can pass stored, attacker-controlled values to ContentRenderer.renderexception when plugin rendering fail...

CVE-2026-75526 django CMS: Stored XSS in edit-mode plugin exception rendering

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. From 5.0.8 until 5.0.9, ContentRenderer.renderplaceholder in cms/pluginrendering.py can pass stored, attacker-controlled values to ContentRenderer.renderexception when plugin rendering fail...

CVE-2026-63003 django CMS: Broken access control in page *Duplicate* allows reading the content of any page (cross-site / restriction bypass)

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.9, page duplication lacks an object-level authorization check on the source page. In cms/admin/forms.py, DuplicatePageForm.source accepts any Page, the AddPageForm constructor...

EUVD-2026-63570

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.9, page duplication lacks an object-level authorization check on the source page. In cms/admin/forms.py, DuplicatePageForm.source accepts any Page, the AddPageForm constructor...

CVE-2026-63003 django CMS: Broken access control in page *Duplicate* allows reading the content of any page (cross-site / restriction bypass)

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.9, page duplication lacks an object-level authorization check on the source page. In cms/admin/forms.py, DuplicatePageForm.source accepts any Page, the AddPageForm constructor...

CVE-2026-63003

A staff user with only "add page" permission can POST a crafted source page ID to the duplicate endpoint, copying all placeholders/plugins of an unauthorized page and stripping its view restrictions, exposing restricted or cross-site content. The fix adds an object-level user_can_view_page() chec...

CVE-2026-61663

The render_object_structure view in django CMS (4.0.0–5.0.x) lacked object-level authorization for non-PageContent models using PlaceholderRelationField. An authenticated staff user without cms.use_structure or model-level permissions could request the structure endpoint with guessed IDs to discl...

CVE-2026-61663 django CMS: Missing authorization in `render_object_structure` discloses non-PageContent placeholder structure to low-privileged staff

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.9, renderobjectstructure fails to authorize non-PageContent objects that use PlaceholderRelationField. An active staff user without cms.usestructure or model-level view or chan...

EUVD-2026-63569

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.9, renderobjectstructure fails to authorize non-PageContent objects that use PlaceholderRelationField. An active staff user without cms.usestructure or model-level view or chan...

CVE-2026-61663 django CMS: Missing authorization in `render_object_structure` discloses non-PageContent placeholder structure to low-privileged staff

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.9, renderobjectstructure fails to authorize non-PageContent objects that use PlaceholderRelationField. An active staff user without cms.usestructure or model-level view or chan...

CVE-2026-54622 django CMS: Clipboard copy IDOR discloses unauthorized plugin content

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.8, the copyplugins endpoint in cms/admin/placeholderadmin.py authorizes only the destination clipboard. The copyplugintoclipboard and copyplaceholdertoclipboard paths accept...

CVE-2026-54622 django CMS: Clipboard copy IDOR discloses unauthorized plugin content

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.8, the copyplugins endpoint in cms/admin/placeholderadmin.py authorizes only the destination clipboard. The copyplugintoclipboard and copyplaceholdertoclipboard paths accept...

EUVD-2026-63568

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.8, the copyplugins endpoint in cms/admin/placeholderadmin.py authorizes only the destination clipboard. The copyplugintoclipboard and copyplaceholdertoclipboard paths accept...