PT-2026-26094 · Packagist · Craftcms/Cms

Published 2026-03-18 · Updated 2026-03-18 · CVE-2026-33051

OSV

CVSS v4.0

5.3

Medium

AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

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.

Users should update to Craft 5.9.11 with the patch to mitigate the issue.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-33051

GHSA-3X4W-MXPF-FHQQ

Affected Products

Craftcms/Cms

References · 5

• https://osv.dev/vulnerability/GHSA-3x4w-mxpf-fhqq · Vendor Advisory
• https://github.com/craftcms/cms · Note
• https://github.com/craftcms/cms/commit/f634a9d21edcafd83a6716047d275f985aba6be1 · Note
• https://github.com/craftcms/cms/releases/tag/5.9.11 · Note
• https://github.com/craftcms/cms/security/advisories/GHSA-3x4w-mxpf-fhqq · Note