CVE-2025-45887 is a critical Server-Side Request Forgery (SSRF) vulnerability affecting Yifang CMS version 2.0.2. SSRF vulnerabilities occur when an attacker can manipulate a server-side application to make HTTP requests to arbitrary domains or internal systems that the attacker normally cannot access. In this case, the vulnerability exists in the /api/file/getRemoteContent endpoint of Yifang CMS. This endpoint likely fetches remote content based on user-supplied input without proper validation or sanitization, allowing attackers to craft malicious requests that cause the server to initiate unauthorized requests to internal or external resources. The CVSS 3.1 score of 9.1 (critical) reflects the high impact and ease of exploitation: the attack vector is network-based (AV:N), requires no privileges (PR:N), no user interaction (UI:N), and affects confidentiality and integrity with high impact (C:H/I:H), but does not affect availability (A:N). Exploiting this SSRF could allow attackers to access sensitive internal services, bypass firewalls, perform port scanning on internal networks, or exfiltrate data by leveraging the server's network privileges. Although no known exploits are currently reported in the wild, the vulnerability is publicly disclosed and poses a significant risk if left unpatched. The lack of patch links suggests that a fix may not yet be available or publicly released, increasing the urgency for mitigation. The CWE-918 classification confirms this is a classic SSRF issue. Given the nature of CMS platforms, which often manage website content and potentially sensitive user data, exploitation could lead to unauthorized data access, internal network reconnaissance, and further compromise of backend systems.

For European organizations using Yifang CMS v2.0.2, this vulnerability presents a severe risk to confidentiality and integrity of their internal networks and data. SSRF can be leveraged to access internal-only services such as databases, metadata services in cloud environments, or administrative interfaces that are not exposed externally. This could lead to data breaches involving personal data protected under GDPR, resulting in regulatory penalties and reputational damage. Additionally, attackers could use SSRF to pivot within the network, escalating attacks to critical infrastructure or sensitive business systems. The lack of authentication or user interaction required for exploitation means that attackers can remotely and anonymously exploit this vulnerability, increasing the threat surface. European organizations with public-facing Yifang CMS installations are particularly vulnerable, especially if these systems are integrated with internal services or cloud environments. The potential impact includes unauthorized data disclosure, internal network mapping, and indirect attacks on other internal assets, which could disrupt business operations and compromise customer trust.

Immediate mitigation steps include restricting access to the vulnerable /api/file/getRemoteContent endpoint through web application firewalls (WAFs) or network access controls to limit requests to trusted sources only. Organizations should implement strict input validation and sanitization on any parameters that accept URLs or remote content references to prevent SSRF payloads. Network segmentation should be enforced to isolate the CMS server from sensitive internal services, minimizing the impact of SSRF exploitation. Monitoring and logging of outbound requests from the CMS server can help detect anomalous activity indicative of SSRF attempts. Until an official patch is released, consider disabling or restricting the vulnerable API endpoint if feasible. Additionally, organizations should review and harden cloud metadata service access controls if the CMS is hosted in cloud environments, as SSRF can be used to access such services. Regular vulnerability scanning and penetration testing focused on SSRF vectors can help identify and remediate similar issues proactively. Finally, maintain up-to-date threat intelligence feeds to monitor for any emerging exploits targeting this vulnerability.