An authenticated backend user with the editor.cms_pages, editor.cms_layouts, or editor.cms_partials permissions who would normally not be permitted to provide PHP code to be executed by the CMS due to cms.safe_mode being enabled can craft a special request to include PHP code in the CMS template.
This is not a problem for anyone who trusts their users with those permissions to usually write & manage PHP within the CMS by not having cms.safe_mode enabled. Still, it would be a problem for anyone relying on cms.safe_mode to ensure that users with those permissions in production do not have access to write and execute arbitrary PHP.
This issue has been patched in v3.4.15.
As a workaround, remove the specified permissions from untrusted users.
Credits to: - Vasiliy Bodrov
If you have any questions or comments about this advisory: * Email us at hello@octobercms.com
{
"github_reviewed_at": "2023-11-29T21:33:16Z",
"github_reviewed": true,
"severity": "MODERATE",
"nvd_published_at": "2023-12-01T22:15:09Z",
"cwe_ids": [
"CWE-94"
]
}