CVE-2025-7903 is a medium-severity vulnerability affecting yangzongzhuan RuoYi versions up to 4.8.1. The vulnerability arises from improper restriction of rendered UI layers within an unspecified functionality of the Image Source Handler component. This flaw allows an attacker to remotely manipulate how UI layers are rendered, potentially bypassing intended UI restrictions or controls. The vulnerability does not require user interaction or authentication, and the attack vector is network-based, making it exploitable remotely with low complexity. The CVSS 4.0 vector (AV:N/AC:L/AT:N/UI:N/PR:L/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P) indicates that the attacker needs low privileges (PR:L) but no user interaction, and the impact is limited primarily to integrity (VI:L) with no direct confidentiality or availability impact. The exploit has been publicly disclosed but is not yet known to be exploited in the wild. The lack of patch links suggests that a fix may not yet be available or publicly documented. The vulnerability could allow attackers to manipulate UI rendering in ways that might lead to unauthorized actions or misrepresentation of UI elements, potentially facilitating further attacks such as phishing, UI spoofing, or privilege escalation within the application context.

For European organizations using yangzongzhuan RuoYi, particularly versions 4.8.0 and 4.8.1, this vulnerability could undermine the integrity of user interface elements, leading to potential unauthorized actions or misleading UI displays. This may affect internal business applications, customer-facing portals, or administrative interfaces relying on RuoYi, potentially resulting in operational disruptions or data integrity issues. Although the direct confidentiality and availability impacts are limited, the ability to manipulate UI layers remotely without user interaction or elevated privileges increases the risk of automated exploitation. Organizations in sectors with high reliance on web-based management tools—such as finance, healthcare, and government—may face increased risk if RuoYi is part of their software stack. The absence of known exploits in the wild currently limits immediate risk, but public disclosure heightens the urgency for mitigation to prevent future attacks.

European organizations should immediately inventory their software environments to identify any deployments of yangzongzhuan RuoYi versions 4.8.0 or 4.8.1. Until an official patch is released, organizations should consider implementing network-level restrictions to limit access to RuoYi interfaces, such as IP whitelisting or VPN-only access. Employing web application firewalls (WAFs) with custom rules to detect anomalous UI manipulation attempts may help mitigate exploitation. Additionally, monitoring application logs for unusual UI rendering requests or unauthorized access attempts can provide early detection. Organizations should engage with the vendor or community to obtain patches or updates as soon as they become available. Finally, educating users and administrators about the risks of UI manipulation attacks and encouraging vigilance against suspicious interface behavior can reduce the impact of potential exploitation.