CVE-2025-68437 is a Server-Side Request Forgery (SSRF) vulnerability identified in Craft CMS, a popular content management system used for building digital experiences. The flaw exists in the GraphQL API, specifically within the `save_<VolumeName>_Asset` mutation, which accepts a `_file` input containing a `url` parameter. This parameter is intended to allow the server to fetch and save remote assets. However, due to insufficient validation of the URL input, an attacker with appropriate GraphQL permissions can supply URLs pointing to internal IP addresses or cloud provider metadata endpoints. This forces the server to make unauthorized requests to internal services that are typically inaccessible externally. The fetched content is then saved as an asset within the CMS, which the attacker can subsequently access and exfiltrate. This can lead to exposure of sensitive internal information, such as cloud instance metadata, credentials, or other internal network resources. The vulnerability affects Craft CMS versions from 4.0.0-RC1 up to but not including 4.16.17, and 5.0.0-RC1 up to but not including 5.8.21. Exploitation requires elevated GraphQL permissions related to asset management, which limits the attack surface to users or roles with such privileges. The CVSS 4.0 vector indicates network attack vector, low attack complexity, partial privileges required, no user interaction, and high impact on confidentiality. No public exploits have been reported yet, but the vulnerability poses a significant risk if leveraged in targeted attacks. The recommended mitigation is to update Craft CMS to versions 4.16.17 or 5.8.21 where the issue has been patched.

For European organizations using Craft CMS, this SSRF vulnerability can have several impacts. If exploited, attackers could access internal network resources, including cloud metadata services, potentially leading to credential theft and lateral movement within the infrastructure. This can result in data breaches, unauthorized access to sensitive information, and disruption of services. Organizations in sectors with strict data protection regulations (e.g., GDPR) face increased compliance risks and potential fines if sensitive data is exposed. The requirement for specific GraphQL permissions somewhat limits the risk to insiders or compromised accounts with asset management rights, but privilege escalation or phishing could enable such access. Additionally, the ability to exfiltrate internal data via saved assets can facilitate further attacks or espionage. The medium CVSS score reflects moderate risk, but the potential for significant damage exists if combined with other vulnerabilities or misconfigurations. European organizations relying on Craft CMS for public-facing or internal digital platforms should prioritize patching to prevent exploitation.

1. Upgrade Craft CMS installations to version 5.8.21 or 4.16.17 immediately to apply the official patch addressing the SSRF vulnerability. 2. Review and restrict GraphQL permissions, ensuring only trusted users have asset management rights, minimizing the attack surface. 3. Implement network segmentation and firewall rules to limit the CMS server's ability to access internal IP ranges and cloud metadata endpoints, reducing SSRF impact. 4. Monitor GraphQL API usage logs for unusual asset save requests or unexpected URL parameters that may indicate exploitation attempts. 5. Employ Web Application Firewalls (WAFs) with custom rules to detect and block SSRF patterns targeting internal resources. 6. Conduct regular security audits and penetration tests focusing on API endpoints and permission configurations. 7. Educate developers and administrators about SSRF risks and secure coding practices related to URL input validation.