CVE-2026-116052 in LinkStack
Summary
by MITRE • 10/25/2026
A security flaw has been discovered in LinkStackOrg LinkStack up to 4.8.8. The affected element is an unknown function. Performing a manipulation results in cross-site request forgery. Remote exploitation of the attack is possible. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 10/25/2026
The discovery of a Cross-Site Request Forgery vulnerability within LinkStackOrg LinkStack versions up to 4.8.8 represents a significant security deficiency that undermines the integrity of user actions performed through the application interface. This specific flaw resides within an unknown function, indicating that the precise code path responsible for the failure is not immediately obvious without deep source code analysis or extensive fuzzing efforts. The core technical issue involves the absence of adequate anti-CSRF protections in a state-changing operation. In web applications, CSRF attacks exploit the trust that a site has in a user's browser by tricking the user into submitting a malicious request they did not intend to make. Because LinkStack allows for remote exploitation, an attacker can craft a deceptive webpage or email containing a hidden form submission or image tag that triggers this vulnerable function when accessed by a logged-in victim with administrative privileges.
The operational impact of this vulnerability is severe due to the potential scope of actions available through the admin interface. If the affected function modifies application settings, creates new user accounts, alters configurations, or performs other privileged operations, an attacker could gain unauthorized control over the LinkStack instance. This could lead to data exfiltration, defacement of the public-facing site, or the establishment of a persistent backdoor for further exploitation. The lack of response from the vendor since early disclosure exacerbates this risk, as users are left without official patches or guidance on how to mitigate the issue in their current deployments. This silence forces administrators to rely on workarounds such as restricting access to administrative endpoints via IP whitelisting or implementing external reverse proxy rules that validate CSRF tokens manually if supported by the underlying framework.
From a classification perspective, this vulnerability aligns with CWE-352, which defines Cross-Site Request Forgery (CSRF) as a flaw where an application fails to verify whether a request was intentionally initiated by the user. The attack vector described corresponds to ATT&CK technique T1078, specifically Valid Accounts, and potentially T1190, Exploit Public-Facing Application, depending on how easily the malicious payload can be delivered to victims. The remote nature of the exploit means that no local access or prior authentication is required for the attacker to initiate the attack sequence, although successful exploitation typically requires the victim to have an active session with sufficient privileges within LinkStack at the time the forged request is processed by the server.
To mitigate this risk in the absence of a vendor patch, system administrators should implement strict input validation and ensure that all state-changing requests require unique, unpredictable tokens generated per user session. Additionally, enforcing SameSite cookie attributes on session cookies can significantly reduce the likelihood of successful CSRF attacks by preventing browsers from sending these cookies with cross-site requests. Network-level controls such as Web Application Firewalls configured to detect anomalous request patterns or missing referer headers for sensitive endpoints provide an additional layer of defense. Given the prolonged lack of vendor engagement, organizations running affected versions should prioritize upgrading to a patched version immediately upon release and consider auditing their deployment configurations to minimize exposure until official remediation is available.