TI-2026-51007 Aliases CVE-2026-72781 GHSA-f5wm-88jv-g5hx

Craft CMS 5.0.0-RC1 before 5.10.7 Remote Code Execution via Twig Sandbox Escape

MEDIUM 41CWE-693Published 2026-08-11 · Updated 2026-10-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-693.

Summary

Craft CMS versions >= 5.0.0-RC1 before 5.10.7 and >= 4.0.0-RC1 before 4.18.3 contain a remote code execution vulnerability in the Twig sandbox mechanism. Because Craft marks the ElementInterface as safe (via the AllowedInSandbox attribute) and the sandbox allowlisting extends to the entire class hierarchy (craft\base\Component up to yii\base\Component), an authenticated attacker with permission to access the control panel can render a malicious Twig template that abuses the yii\base\Component arbitrary function-call gadget to execute arbitrary code, even when the Twig sandbox is enabled via enableTwigSandbox().

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00786 56th percentileScored 2026-11-07

Fix Fixed cms (craftcms): 5.10.7, 4.18.3craftcms/cms (Packagist): 5.10.7, 4.18.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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-RC1 to before 5.10.7	5.10.7	Patch available	CNA
Craft CMS	cms	4.0.0-RC1 to before 4.18.3	4.18.3	Patch available	CNA
—	craftcms/cms (Packagist)	5.0.0-RC1 to before 5.10.7	5.10.7	Patch available	GHSA-f5wm-88jv-g5hx
—	craftcms/cms (Packagist)	4.0.0-RC1 to before 4.18.3	4.18.3	Patch available	GHSA-f5wm-88jv-g5hx

cms VendorCraft CMS Affected 5.0.0-RC1 to before 5.10.7 Fixed in 5.10.7 Patch available CNA
cms VendorCraft CMS Affected 4.0.0-RC1 to before 4.18.3 Fixed in 4.18.3 Patch available CNA
craftcms/cms (Packagist) Vendor— Affected 5.0.0-RC1 to before 5.10.7 Fixed in 5.10.7 Patch available GHSA-f5wm-88jv-g5hx
craftcms/cms (Packagist) Vendor— Affected 4.0.0-RC1 to before 4.18.3 Fixed in 4.18.3 Patch available GHSA-f5wm-88jv-g5hx

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

Fix · CNA cms (craftcms) Fixed in 5.10.7
Fix · CNA cms (craftcms) Fixed in 4.18.3
Fix · GHSA-f5wm-88jv-g5hx craftcms/cms (Packagist) Fixed in 5.10.7 Advisory →
Fix · GHSA-f5wm-88jv-g5hx craftcms/cms (Packagist) Fixed in 4.18.3 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-72781
2026-10-03 Alias added: GHSA-f5wm-88jv-g5hx

References

Advisory 2

Other 4

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