TI-2026-76615 Aliases CVE-2026-112776 GHSA-vgpq-xf77-c94c

Craft CMS GraphQL Site-Scope Bypass via Mutations

MEDIUM 48CWE-863Published 2026-10-19 · Updated 2026-10-20

Key facts

Attack vector: Network
Privileges required: None
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. Impact type from CWE-863.

Summary

Craft CMS from 5.0.0 before 5.11.0 contains an incorrect authorization flaw (CWE-863) because requireAllowedSite() is not enforced on GraphQL mutations. An attacker holding a token scoped to one site can use a supplied siteId to create entries in another site and delete entries, categories, tags, and assets shared across sites. The CVSS 4.0 vector shows that an unauthenticated remote attacker needs no user interaction, with high impact on confidentiality, integrity and availability.

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

Description from the CNA

Craft CMS from 5.0.0 before 5.11.0 contains an authorization bypass vulnerability that allows site-scoped GraphQL tokens to mutate other sites' content because requireAllowedSite() is not enforced. Attackers holding a site-A token can create entries in site B via supplied siteId and delete entries, categories, tags, and assets shared across sites.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00386 32nd percentileScored 2026-11-07

Fix Fixed cms (craftcms): 5.11.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
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 to before 5.11.0	5.11.0	Patch available	CNA

cms VendorCraft CMS Affected 5.0.0 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, which fixes the issue. CISA does not list this vulnerability in its Known Exploited Vulnerabilities catalog.

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-2026-76616 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
- TI-2026-76613 Craft CMS ContentBlock field layout code injection enables RCEPriority MEDIUM 41
Show all 8 records →

Timeline

2026-10-20 Threatist record created from CVE-2026-112776
2026-10-20 Alias added: GHSA-vgpq-xf77-c94c
2026-10-20 CISA SSVC decision points changed

References

Advisory 1

GitHub Security Advisory (GHSA-7rr3-4jcm-x526)

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