Craft CMS is a content management system (CMS). In versions 5.9.0-beta.1 through 5.9.10, the revision/draft context menu in the element editor renders the creator’s fullName as raw HTML due to the use of Template::raw() combined with Craft::t() string interpolation. A low-privileged control panel user (e.g., Author) can set their fullName to an XSS payload via the profile editor, then create an entry with two saves. If an administrator is logged in and executes a specifically crafted payload while an elevated session is active, the attacker’s account can be elevated to administrator. This issue has been fixed in version 5.9.11.

The version of Craft CMS installed on the remote host is 5.9.x prior to 5.9.11. It is, therefore, affected by a cross-site scripting vulnerability:

  - The revision/draft context menu in the element editor renders the creator's fullName as raw HTML due to the     use of Template::raw() combined with Craft::t() string interpolation. A low-privileged control panel user     can set their fullName to an XSS payload via the profile editor, then create an entry with two saves. If an     administrator views the affected element, the attacker's account can be elevated to administrator.
    (CVE-2026-33051)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Craft CMS is a content management system (CMS). In versions 5.9.0-beta.1 through 5.9.10, the
    revision/draft context menu in the element editor renders the creator’s fullName as raw HTML due to the
    use of Template::raw() combined with Craft::t() string interpolation. A low-privileged control panel user
    (e.g., Author) can set their fullName to an XSS payload via the profile editor, then create an entry with
    two saves. If an administrator is logged in and executes a specifically crafted payload while an elevated
    session is active, the attacker’s account can be elevated to administrator. This issue has been fixed in
    version 5.9.11. (CVE-2026-33051)

ID	Name	Product	Family	Severity
303619	Craft CMS 5.9.x < 5.9.11 Stored XSS (GHSA-3x4w-mxpf-fhqq)	Nessus	Misc.	medium
438959	SCA: security update for craftcms/cms (GHSA-3x4w-mxpf-fhqq)	Tenable Cloud Security	SCA Checks	medium
438959	SCA: security update for craftcms/cms (GHSA-3x4w-mxpf-fhqq)	Tenable Self-Hosted Container Security	SCA Checks	medium

Detections

Analytics

CVE-2026-33051

medium

Tenable Plugins

medium

medium

medium