CVE-2025-9398 is a security vulnerability identified in YiFang CMS versions up to 2.0.5, specifically affecting the exportInstallTable function within the app/utils/base/database/Migrate.php file. This vulnerability allows an unauthenticated remote attacker to manipulate the function in a way that leads to information disclosure. The vulnerability does not require any privileges or user interaction to exploit, making it accessible over the network without authentication. The disclosed CVSS 4.0 score of 6.9 (medium severity) reflects the ease of exploitation (network attack vector, low attack complexity) and the impact limited to confidentiality (information disclosure) without affecting integrity or availability. The vulnerability arises from improper handling of data within the exportInstallTable function, which likely exposes sensitive database schema or installation-related information that could be leveraged for further attacks or reconnaissance. Although the vendor was notified early, there has been no response or patch release, and while no known exploits are currently observed in the wild, public disclosure of the exploit code increases the risk of exploitation. This vulnerability is particularly concerning for organizations relying on YiFang CMS for content management, as it could expose sensitive internal data to attackers remotely without authentication.

For European organizations using YiFang CMS, this vulnerability poses a moderate risk primarily through unauthorized information disclosure. Exposure of internal database schema or installation details could facilitate subsequent targeted attacks such as SQL injection, privilege escalation, or lateral movement within the network. Organizations handling sensitive or regulated data (e.g., personal data under GDPR) could face compliance risks if confidential information is leaked. The lack of vendor response and absence of patches increase the window of exposure. Given the remote and unauthenticated nature of the exploit, attackers can scan and target vulnerable systems broadly, potentially affecting websites, intranet portals, or other CMS-driven services. This could undermine trust, lead to data breaches, and cause reputational damage. However, since the vulnerability does not directly impact system integrity or availability, the immediate operational disruption risk is lower compared to more critical vulnerabilities.

European organizations should first identify all instances of YiFang CMS version 2.0.0 through 2.0.5 in their environment. Since no official patch is available, mitigation should focus on reducing exposure: restrict external network access to the CMS management interfaces using firewalls or VPNs; implement web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the exportInstallTable function; monitor logs for unusual access patterns or attempts to exploit this vulnerability; consider temporary disabling or restricting the vulnerable function if possible through configuration or code modification; and isolate CMS servers from critical internal networks to limit lateral movement. Organizations should also engage with the vendor or community for updates and apply patches promptly once available. Additionally, conducting regular security assessments and penetration tests focused on CMS components can help detect exploitation attempts early.