mediumVulnerability

GHSA-3m9m-24vh-39wx

## Required Permissions The exploitation requires a few permissions to be enabled in the used GraphQL schema: * "Edit assets in the <VolumeName> volume" * "Create assets in the <VolumeName> volume" ## Details The implementation fails to restrict the URL Scheme. While the application is intended to "upload assets", there is no whitelist forcing `http` or `https`. This allows attackers to use the Gopher protocol to wrap raw TCP commands. **Impact:** Combined with the DWORD bypass, an attacker can hit internal services without triggering any "127.0.0.1" string-matching filters. **Example Payload:** gopher://2130706433:6379/_FLUSHALL (Targets local Redis via DWORD). **Remediation Strategy** To prevent mathematical IP obfuscation, the application must normalize the hostname before validation.

Properties

ghsa_id
GHSA-3m9m-24vh-39wx
severity
medium
summary
Server-Side Request Forgery (SSRF) in Craft CMS with Asset Uploads Mutations
cve_id
GHSA-3m9m-24vh-39wx
is_ghsa_only
true
ghsa_published
2026-04-14T23:35:16Z
source_url
https://github.com/advisories/GHSA-3m9m-24vh-39wx
ghsa_updated
2026-04-14T23:35:16Z

Related Entities (4)

AFFECTS (1)

[Software]composer/craftcms/cms

HAS_WEAKNESS (1)

[Weakness]Server-Side Request Forgery (SSRF)

REPORTED_BY (1)

[Source]GitHub Advisory Database

VULNERABLE_TO (1)

[Software]composer/craftcms/cms

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GHSA-3m9m-24vh-39wx — Ninja Signal Threat Intelligence | Ninja Signal