CVE-2025-7907 is a medium-severity vulnerability affecting yangzongzhuan RuoYi versions up to 4.8.1. The issue arises from the use of default credentials within the Druid component configuration file located at ruoyi-admin/src/main/resources/application-druid.yml. Specifically, the vulnerability allows an attacker to remotely exploit the system by leveraging these default credentials, which are presumably hardcoded or left unchanged from installation defaults. The vulnerability does not require user interaction or privileges beyond low-level privileges (PR:L), and it can be exploited remotely (AV:N) with low attack complexity (AC:L). The impact is limited to confidentiality (VC:L) with no direct impact on integrity or availability. The vulnerability is publicly disclosed, but there are no known exploits in the wild at this time. The lack of authentication requirements and the possibility of remote exploitation make this a notable risk for affected installations. Since the vulnerability stems from default credentials, it implies that systems with unchanged or weak credentials are susceptible to unauthorized access, potentially exposing sensitive data or administrative interfaces within the RuoYi framework environment.

For European organizations using yangzongzhuan RuoYi, particularly versions 4.8.0 and 4.8.1, this vulnerability could lead to unauthorized access to administrative components or sensitive data managed via the Druid monitoring system. Although the CVSS score is medium and the impact is primarily on confidentiality, unauthorized access could facilitate further reconnaissance or lateral movement within the network. This is especially critical for organizations relying on RuoYi for internal applications or services that handle personal data or business-critical information. The remote exploitability without user interaction increases the risk of automated scanning and exploitation attempts. European organizations in sectors such as finance, healthcare, or public administration, where data confidentiality is paramount, could face regulatory and reputational consequences if this vulnerability is exploited. Additionally, the lack of known patches or mitigations at the time of disclosure means organizations must act promptly to reduce exposure.

To mitigate this vulnerability, European organizations should immediately audit all RuoYi installations to identify affected versions (4.8.0 and 4.8.1). The primary mitigation is to change any default credentials in the Druid configuration file (application-druid.yml) to strong, unique passwords. Organizations should enforce credential management policies that prevent the use of default or weak passwords. Network-level controls such as restricting access to the Druid monitoring interface to trusted IP addresses or internal networks can reduce exposure. If possible, disable or remove the Druid component if it is not required. Monitoring and logging access to the Druid interface should be enhanced to detect unauthorized attempts. Since no official patches are currently linked, organizations should monitor vendor advisories for updates or patches. Implementing multi-factor authentication (MFA) for administrative interfaces and conducting regular vulnerability scans targeting default credential issues can further reduce risk.