CVE-2026-95592 in Team Plugin
Summary
by MITRE • 09/23/2026
Unauthenticated Insecure Direct Object References (IDOR) in Team <= 6.0.0 versions.
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Analysis
by VulDB Data Team • 09/23/2026
The vulnerability identified as an Unauthenticated Insecure Direct Object Reference within Team software versions up to and including 6.0.0 represents a critical failure in access control mechanisms, specifically falling under the category of CWE-639: Injection of Critical Data into a Web Application via Indirect References. This flaw allows any external actor without valid credentials or authentication tokens to directly manipulate application resources by modifying parameters that reference internal object identifiers. In typical web architectures, these references often take the form of numeric IDs in URLs or API payloads, such as user profiles, project configurations, or sensitive documents. The core technical deficiency lies in the server-side logic which trusts client-supplied input for authorization decisions rather than verifying whether the authenticated session associated with that request actually owns or has permission to access the requested resource. Because this specific instance is unauthenticated, the barrier of entry is effectively removed, allowing attackers to enumerate and interact with system objects freely from a remote location without needing to bypass login screens or exploit credential theft vectors first.
From an operational perspective, the impact of this vulnerability can range widely depending on the sensitivity of the data exposed through these direct object references. Attackers can potentially view private information belonging to other users, such as personal details, communication logs, or proprietary business documents stored within the Team platform. In more severe configurations where write operations are also susceptible to IDOR manipulation, an adversary could modify settings for other tenants, delete critical records, or escalate privileges by altering role assignments linked to specific object IDs. This lack of proper authorization checks undermines the fundamental security principle of least privilege and compromises data integrity and confidentiality simultaneously. The absence of authentication requirements further exacerbates the risk, as it enables automated scanning tools to rapidly discover vulnerable endpoints and extract large volumes of sensitive data in a short timeframe, leading to significant regulatory compliance violations under frameworks such as GDPR or HIPAA if personal health information is involved.
This vulnerability maps directly to several entries within the MITRE ATT&CK framework, most notably T1078: Valid Accounts when considering scenarios where authenticated users exploit similar flaws for lateral movement, but in this unauthenticated context, it aligns closely with T1592: Gather Victim Host Information and T1530: Data from Cloud Storage Object. The exploitation technique involves the attacker systematically iterating through sequential or predictable object identifiers to map out the application's data structure and extract valuable intelligence about the organization using the software. This reconnaissance phase is often a precursor to more destructive actions, such as data exfiltration or ransomware deployment if the accessible objects include backup files or administrative configurations. The persistence of this flaw in versions up to 6.0.0 suggests that previous security audits may have overlooked indirect reference validation mechanisms during development and testing phases.
To mitigate this vulnerability, immediate action is required by upgrading Team software to a version later than 6.0.0 where the issue has been patched with robust access control checks. Developers must implement strict object-level authorization logic on all endpoints that accept resource identifiers as input parameters. This involves verifying that the user associated with the current session context explicitly owns or is authorized to interact with the specific object ID requested, rather than relying solely on the presence of a valid token for general application access. Additionally, implementing randomization techniques such as UUIDs instead of sequential integers for internal references can make enumeration attacks significantly more difficult, although this should not be relied upon as a sole defense mechanism due to the potential for collision or prediction in certain contexts. Security teams should also conduct thorough penetration testing focused on broken object level authorization using tools that simulate unauthenticated access patterns to ensure no residual vulnerabilities remain before deploying updated versions into production environments.