TI-2026-76613 Aliases CVE-2026-112774 GHSA-9m6c-jxf8-fjvm

Craft CMS ContentBlock field layout code injection enables RCE

MEDIUM 41CWE-94Published 2026-10-19 · Updated 2026-10-20

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

Craft CMS from 5.8.0 before 5.11.0 contains a code injection flaw (CWE-94) in ContentBlock::setFieldLayout(). An authenticated administrator can supply a JSON-string field layout that injects Yii behaviors and bypasses config cleansing, which lets the attacker run OS commands as the web user and disclose secrets. The attack requires allowAdminChanges to be enabled.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Craft CMS from 5.8.0 before 5.11.0 contains a remote code execution vulnerability that allows authenticated administrators to inject Yii behaviors by supplying a JSON-string field layout to ContentBlock::setFieldLayout(). Attackers with allowAdminChanges enabled can include 'as X' or 'on X' keys that bypass cleanseConfig() to execute OS commands as the web user and disclose secrets.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00638 50th percentileScored 2026-11-07

Fix Fixed cms (craftcms): 5.11.0

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	5.8.0 to before 5.11.0	5.11.0	Patch available	CNA

cms VendorCraft CMS Affected 5.8.0 to before 5.11.0 Fixed in 5.11.0 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 5.11.0 or later. The sources list no fixed version for other products.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Fix · CNA cms (craftcms) Fixed in 5.11.0

Fixed in the same release

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

Release · 2026-10-19
craftcms cms 5.11.0
8 records Highest priority Priority MEDIUM 7 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-76615 Craft CMS GraphQL Site-Scope Bypass via MutationsPriority MEDIUM 48
- TI-2026-76616 Craft CMS Twig create() blocklist bypass allows remote code executionPriority MEDIUM 45
- TI-2026-76614 Verification code reuse in Craft CMS allows account takeoverPriority MEDIUM 44
Show all 8 records →

Timeline

2026-10-20 Threatist record created from CVE-2026-112774
2026-10-20 Alias added: GHSA-9m6c-jxf8-fjvm
2026-10-20 CISA SSVC decision points changed
2026-10-20 Priority changed: MEDIUM → LOW
2026-10-21 Priority changed: LOW → MEDIUM
2026-10-25 EPSS moved to the 50th–90th percentile

References

Advisory 1

GitHub Security Advisory (GHSA-j6r9-fxgv-j7x5)

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