CVE-2026-109307

MEDIUMCVSS 4.7

Description

Craft CMS 5.0.0 before 5.10.14 contains a DOM-based cross-site scripting vulnerability in the control panel login and 2FA verification flow, where a user-controlled returnUrl accepting javascript: URLs is used in client-side navigation. Attackers can lure a 2FA-enabled victim into opening a crafted /admin/login?verify=1 URL between password submission and TOTP verification, executing JavaScript in the authenticated control panel with the victim's permissions.

Timeline

Published:October 12th, 2026 5:17 PM

Last modified:October 15th, 2026 8:33 PM

CVSS Scoring

CVSS v3: 4.7 (MEDIUM)

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

Weaknesses (CWE)

CWE-79

References & Reports

Advisories, patches, and third-party reports

https://github.com/craftcms/cms/security/advisories/GHSA-w5rh-mhxj-wr8r
https://www.vulncheck.com/advisories/craft-cms-5.0.0-before-5.10.14-dom-xss-via-returnurl-in-2fa-verification

Source: NIST NVD · Data may lag official sources by up to one minute