AWS
CVE-2026-25492
MEDIUM
GHSA-96pq-hxpw-rgh8
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
4DescriptionGitHub Advisory
Craft CMS is a content management system. In Craft versions 3.5.0 through 4.16.17 and 5.0.0-RC1 through 5.8.21, the save_images_Asset GraphQL mutation can be abused to fetch internal URLs by providing a domain name that resolves to an internal IP address, bypassing hostname validation. When a non-image file extension such as .txt is allowed, downstream image validation is bypassed, which can allow an authenticated attacker with permission to use save_images_Asset to retrieve sensitive data such as AWS instance metadata credentials from the underlying host. This issue is patched in versions 4.16.18 and 5.8.22.
AnalysisAI
Craft CMS versions 3.5.0-4.16.17 and 5.0.0-RC1-5.8.21 contain a server-side request forgery vulnerability in the save_images_Asset GraphQL mutation that allows authenticated users to bypass hostname validation and retrieve internal URLs by specifying domains resolving to private IP addresses. By uploading files with non-image extensions like .txt, attackers can bypass downstream validation to access sensitive data including AWS instance metadata credentials from the host system. Public exploit code exists for this vulnerability, though patches are available in versions 4.16.18 and 5.8.22.
Technical ContextAI
Classified as CWE-918 (Server-Side Request Forgery (SSRF)). Affects Craft Cms. Craft CMS is a content management system. In Craft versions 3.5.0 through 4.16.17 and 5.0.0-RC1 through 5.8.21, the save_images_Asset GraphQL mutation can be abused to fetch internal URLs by providing a domain name that resolves to an internal IP address, bypassing hostname validation. When a non-image file extension such as .txt is allowed, downstream image validation is bypassed, which can allow an authenticated attacker with permission to use save_images_Asset to retrieve sensitive data such
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
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Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
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External POC / Exploit Code
Leaving vuln.today