CVE-2026-85154 in AVideo
Summary
by MITRE • 09/03/2026
WWBN AVideo contains an authentication failure vulnerability where the video_id_hash credential is a non-expiring, non-revocable bearer token that grants full administrator session access to the video owner's account. Attackers who obtain a video_id_hash can replay it indefinitely to authenticate as the video owner with full privileges, and the credential remains valid even after the owner changes their password.
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Analysis
by VulDB Data Team • 09/03/2026
The vulnerability identified in WWBN AVideo represents a critical authentication failure rooted in the improper management of session credentials. Specifically, the system utilizes a parameter known as video_id_hash which functions effectively as an administrative bearer token rather than a transient or scoped identifier. This design flaw allows any individual who obtains this hash to impersonate the legitimate owner of the associated video account with full administrator privileges. The core technical issue lies in the nature of the credential itself, which lacks expiration mechanisms and revocation capabilities. Unlike standard session tokens that are tied to specific login events and time-limited validity periods, this token persists indefinitely within the system's authentication logic. Consequently, once an attacker acquires a valid video_id_hash through any means such as network interception or log exposure they can use it repeatedly to gain unauthorized access without needing further credentials like passwords or multi-factor authentication codes.
From an operational perspective, the impact of this vulnerability is severe and long-lasting for affected users. Because the token does not expire, traditional security hygiene practices such as password changes are rendered ineffective in mitigating the risk. Even if a video owner detects suspicious activity and immediately updates their account password, the attacker retains full access to the account using the previously obtained hash. This creates a persistent backdoor into the system that remains open until the token is explicitly invalidated by an administrator or through a code patch. The ability to replay this credential indefinitely means that attackers can maintain long-term unauthorized control over video accounts, potentially leading to data theft, defacement of content, or further lateral movement within the platform if other vulnerabilities are present.
This flaw aligns closely with CWE-287 Improper Authentication and CWE-613 Insufficient Session Expiration as defined by common weakness enumerations standards. The failure to implement proper session management practices results in a state where identity verification is bypassed via static credential reuse. In terms of the MITRE ATT&CK framework, this vulnerability facilitates Initial Access through Valid Accounts and specifically exploits Credential Replay techniques. Attackers can leverage these stolen tokens to establish persistence within the application environment without triggering typical anomaly detection systems that monitor for new login events or password changes. The lack of token rotation further exacerbates the risk as there is no mechanism to invalidate previous sessions upon security-sensitive actions such as privilege escalation or account modification.
Mitigation strategies must focus on immediate remediation and long-term architectural improvements. Administrators should urgently rotate all existing video_id_hash values if possible, although this may require a software update from WWBN AVideo developers since manual revocation is not supported by the current design. The primary fix involves modifying the authentication module to ensure that session tokens are short-lived and tied strictly to active user sessions with defined expiration times. Additionally implementing token rotation upon significant account events such as password changes or privilege modifications would prevent replay attacks from succeeding after a security incident. Future development should adhere to industry best practices for stateless authentication where possible, ensuring that credentials cannot be reused indefinitely across different contexts or timeframes without re-authentication.