CVE-2025-15464 identifies a security vulnerability in the yintibao Fun Print Mobile Android application, specifically version 6.05.15. The vulnerability arises from an improperly exported Activity component that allows external applications to interact with the app in an unintended manner. This exported Activity can be invoked by other apps to gain the application context and directly launch the Gmail app with access to the user's inbox, effectively bypassing standard Android security controls designed to isolate app data and prevent unauthorized access. The root cause is classified under CWE-926, which concerns improper export of application components, a common issue in Android app development where developers mistakenly expose Activities, Services, or BroadcastReceivers without adequate permission checks or intent filtering. This flaw can lead to unauthorized access to sensitive user data, including emails, potentially compromising confidentiality and user privacy. Although there are no known exploits in the wild at the time of publication, the vulnerability's nature suggests it could be exploited by malicious apps installed on the same device or by attackers leveraging social engineering to trigger the vulnerable component. The absence of a CVSS score requires an independent severity assessment. The vulnerability does not require user authentication but does require the presence of a malicious app on the device, which may involve user interaction to install. The scope is limited to devices running the affected app version. The vulnerability is particularly concerning for organizations relying on Android devices for business communications, as it could lead to leakage of sensitive corporate emails. No official patches or updates are currently available, emphasizing the need for immediate mitigation steps by developers and users.

For European organizations, this vulnerability can lead to unauthorized access to corporate email accounts via the Gmail app, potentially exposing sensitive business communications, confidential data, and personally identifiable information. This breach of confidentiality could facilitate further attacks such as phishing, corporate espionage, or data leakage. The integrity of communications may also be compromised if attackers manipulate or intercept emails. Availability is less directly impacted, but the trust in mobile device security could be undermined, affecting user confidence and operational continuity. Organizations with mobile workforces using Android devices and the Fun Print Mobile app are at higher risk. The vulnerability could also impact compliance with GDPR and other data protection regulations due to unauthorized data exposure. The lack of known exploits currently limits immediate widespread impact, but the vulnerability represents a latent risk that could be exploited as soon as a malicious actor develops a working exploit. The risk is amplified in sectors with high data sensitivity such as finance, healthcare, and government agencies.

Developers should immediately review and modify the AndroidManifest.xml to remove unnecessary exported Activities or restrict them by setting android:exported="false" where possible. For components that must remain exported, implement strict intent filters and enforce permission checks to ensure only trusted apps can invoke them. Employ Android's permission model to require explicit user consent before granting access to sensitive components. Users should avoid installing untrusted third-party apps that could exploit this vulnerability. Organizations should consider mobile device management (MDM) solutions to control app installations and enforce security policies. Monitoring device behavior for unusual inter-app communications can help detect exploitation attempts. Until a patch is released, consider disabling or uninstalling the affected app version where feasible. Security teams should educate users about the risks of installing unknown apps and encourage regular updates once a fix is available. Finally, vendors should be urged to release a security update promptly addressing this issue.