CVE-2026-109307

CVSS 4.7 (medium) · published 2026-10-12

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.

Weakness: CWE-79

Source: NVD CVE-2026-109307

References

• 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

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