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OpenAdvisories
Medium · 4.7 CVE-2026-109307 EUVD-2026-97609GHSA-c72m-w87q-gvqm

Craft CMS 5.0.0 before 5.10.14 DOM XSS via returnUrl in 2FA Verification

Published Oct 12, 2026 · Updated Oct 15, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
craftcms cms 5.0.0 – < 5.10.14 5.10.14

References