TI-2026-71123 Aliases CVE-2026-109307 GHSA-c72m-w87q-gvqm

DOM-based XSS in Craft CMS login 2FA verification via returnUrl

LOW 10CWE-79Published 2026-10-12 · Updated 2026-10-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: Active
Attack complexity: Low
Attack requirements: Present
Impact type: Cross-site scripting
Confidentiality · integrity · availability: None · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Craft CMS from 5.0.0 before 5.10.14 contains a DOM-based cross-site scripting flaw (CWE-79) in the control panel login and 2FA verification flow. A user-controlled returnUrl that accepts javascript: URLs is used in client-side navigation. An attacker can lure a 2FA-enabled user into opening a crafted /admin/login?verify=1 URL between password submission and TOTP verification, running JavaScript in the control panel with the victim's permissions.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00185 8th percentileScored 2026-11-07

Fix Fixed cms (craftcms): 5.10.14

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Craft CMS	cms	5.0.0 to before 5.10.14	5.10.14	Patch available	CNA

cms VendorCraft CMS Affected 5.0.0 to before 5.10.14 Fixed in 5.10.14 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:craftcms:craft_cms::::::::	—	—	Craft CMS

cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:* Versions — — ·Craft CMS

Remediation

Upgrade Craft CMS to version 5.10.14.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA cms (craftcms) Fixed in 5.10.14

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-12
craftcms cms 5.10.14
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-71124 Craft CMS behavior injection enables remote code executionPriority MEDIUM 40
- TI-2026-71121 Twig sandbox bypass in Craft CMS allows code execution via has somePriority MEDIUM 40
- TI-2026-71120 Arbitrary file read in Craft CMS through Twig create() DOMDocumentPriority LOW 30
Show all 5 records →

Timeline

2026-10-12 Threatist record created from CVE-2026-109307
2026-10-12 Alias added: GHSA-c72m-w87q-gvqm
2026-10-15 CISA SSVC decision points changed

References

Advisory 1

GitHub Security Advisory (GHSA-w5rh-mhxj-wr8r)

TI-2025-23503 Craft CMS Allows Remote Code Execution KEVCVSS 3.1CRITICAL 10.0
TI-2024-37138 RCE when PHP `register_argc_argv` config setting is enabled in craftcms/cms KEVCVSS 4.0CRITICAL 9.3
TI-2025-16994 Potential RCE with a compromised security key in craft/cms KEVCVSS 3.1HIGH 8.1
TI-2025-24595 Craft CMS stores user-provided content in session files KEVCVSS 4.0MEDIUM 6.9
TI-2023-22284 Craft CMS Remote Code Execution vulnerability CVSS 3.1CRITICAL 10.0
TI-2024-25171 Craft CMS up to v3.7.31 was discovered to contain a SQL injection vulnerability via the GraphQL API endpoint. CVSS 3.1CRITICAL 9.8

See all 203 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences