django-cms Django CMS up to 5.0.7 Copy Plugins placeholderadmin.py _copy_plugin_to_clipboard source_placeholder_id/source_plugin_id improper authorization

Summaryinfo

A vulnerability was found in django-cms Django CMS up to 5.0.7. It has been rated as problematic. Impacted is the function _copy_plugin_to_clipboard of the file cms/admin/placeholderadmin.py of the component Copy Plugins. The manipulation of the argument source_placeholder_id/source_plugin_id leads to improper authorization. This vulnerability is uniquely identified as CVE-2026-54622. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in django-cms Django CMS up to 5.0.7 and classified as problematic. This issue affects the function _copy_plugin_to_clipboard of the file cms/admin/placeholderadmin.py of the component Copy Plugins. The manipulation of the argument source_placeholder_id/source_plugin_id with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality. The summary by CVE is:

django CMS is an easy-to-use and developer-friendly enterprise content management system powered by Django. Prior to 5.0.8, the copy_plugins endpoint in cms/admin/placeholderadmin.py authorizes only the destination clipboard. The _copy_plugin_to_clipboard and _copy_placeholder_to_clipboard paths accept source_placeholder_id and source_plugin_id values but use has_copy_plugins_permission and check_source only for the requesting user’s clipboard, without validating the source placeholder. Under CMS_PERMISSION, a staff user with the global add permission for a plugin type can copy plugins from an unauthorized page or placeholder into the user’s clipboard and read secret text, link names, and URLs. This issue is fixed in versions 5.0.8.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-54622 since 06/15/2026. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are required for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/20/2026). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 5.0.8 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-63568). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• django-cms

Name

• Django CMS

Version

• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7

License

• open-source

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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