CVE-2026-33051

MEDIUM

5.4

Description

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 Details

CVSS v3.1 Score5.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published3/20/2026

Last Modified3/20/2026

Sourcenvd

Honeypot Sightings0

Affected Products

craftcms:craft_cms

Weaknesses (CWE)

CWE-79

References

https://github.com/craftcms/cms/commit/f634a9d21edcafd83a6716047d275f985aba6be1(security-advisories@github.com)

https://github.com/craftcms/cms/releases/tag/5.9.11(security-advisories@github.com)

https://github.com/craftcms/cms/security/advisories/GHSA-3x4w-mxpf-fhqq(security-advisories@github.com)

IOC Correlations

No correlations recorded

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