CVE-2025-34435 is an authorization bypass vulnerability categorized under CWE-639 (Authorization Bypass Through User-Controlled Key) affecting the AVideo platform developed by World Wide Broadcast Network. The flaw exists in versions prior to 20.0 and manifests as an insecure direct object reference (IDOR) in the media deletion functionality. Specifically, while the endpoint correctly verifies that the user is authenticated, it fails to validate whether the authenticated user owns the media file or has the necessary permissions to delete it. This allows any authenticated user, regardless of their privileges, to delete videos belonging to other users. The vulnerability does not require elevated privileges beyond authentication, nor does it require user interaction, making it straightforward to exploit. The CVSS 4.0 score of 8.7 reflects the high impact on confidentiality, integrity, and availability, as unauthorized deletion compromises data integrity and availability of media assets. The vulnerability does not involve scope changes or require complex attack vectors, increasing its risk profile. No public exploits have been reported yet, but the potential for misuse in multi-user environments is significant. The lack of patch links suggests that a fix may be pending or integrated in version 20.0. Organizations relying on AVideo for video hosting or streaming services should prioritize remediation to prevent unauthorized content deletion and potential operational disruption.

For European organizations, the impact of CVE-2025-34435 can be substantial, particularly for enterprises, educational institutions, media companies, and any entities using AVideo for collaborative video management. Unauthorized deletion of media files can lead to loss of critical business content, disruption of services, damage to reputation, and potential regulatory compliance issues related to data integrity and availability. The vulnerability undermines trust in the platform’s access controls, potentially enabling insider threats or malicious users to sabotage content. In sectors such as media production, e-learning, or corporate communications, where video content is integral, this could result in operational downtime and financial losses. Additionally, organizations subject to GDPR must consider the implications of data loss and ensure appropriate incident response and notification procedures. The ease of exploitation and lack of required user interaction increase the likelihood of exploitation if attackers gain authenticated access, emphasizing the need for prompt mitigation.

To mitigate CVE-2025-34435, European organizations should: 1) Upgrade AVideo installations to version 20.0 or later as soon as the patch is available, ensuring the vulnerability is addressed. 2) Until patching, restrict access to the media deletion functionality to only trusted users and minimize the number of authenticated users with deletion privileges. 3) Implement additional authorization checks at the application or web server level, such as web application firewalls (WAFs) with custom rules to detect and block unauthorized deletion attempts. 4) Conduct thorough audits of user permissions and access logs to detect any anomalous deletion activities. 5) Employ multi-factor authentication (MFA) to reduce the risk of compromised credentials being used to exploit the vulnerability. 6) Educate users about the risks of sharing credentials and monitor for suspicious authentication patterns. 7) Consider isolating critical media content in separate environments or storage with stricter access controls. 8) Develop and test incident response plans specifically addressing unauthorized data deletion scenarios to minimize operational impact.