CVE-2026-19992 in DualSafe Password Manager & Digital Vault Extension
Summary
by MITRE • 08/17/2026
A flaw has been found in Orange View Limited DualSafe Password Manager & Digital Vault Extension up to 1.4.35 on Chrome. Affected is an unknown function of the component postMessage-based Bridge. Executing a manipulation can lead to information disclosure. The attack can be launched remotely. A high complexity level is associated with this attack. The exploitability is told to be difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure.
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Analysis
by VulDB Data Team • 08/24/2026
The vulnerability identified in Orange View Limited DualSafe Password Manager & Digital Vault Extension, specifically versions up to 1.4.35 on the Chrome browser platform, centers on a critical flaw within its postMessage-based communication bridge. This component serves as an interface allowing web pages or other extensions to interact with the extension's internal logic by sending messages via the window.postMessage API. The core technical deficiency lies in insufficient validation of incoming message origins and content types. In secure software architecture, such bridges must strictly enforce origin checks to ensure that only trusted sources can invoke sensitive functions within the extension. However, due to an unknown function being improperly exposed or lacking adequate access controls, malicious web pages hosted on different domains can craft specific postMessage payloads that are accepted by the extension without proper authentication or authorization verification. This architectural oversight effectively bypasses standard same-origin policy protections intended to isolate untrusted content from privileged browser extensions.
The operational impact of this vulnerability is significant, primarily resulting in unauthorized information disclosure. Because the vulnerable function lacks adequate restrictions, an attacker can exploit it to extract sensitive data stored within the Digital Vault extension, such as saved passwords, secure notes, or other credentials managed by the user. This exposure compromises the fundamental security promise of a password manager, potentially leading to account takeovers and further lateral movement in compromised environments. The attack vector is remote, meaning that an adversary does not need physical access to the victim's machine but can instead lure users into visiting a maliciously crafted website or be subjected to cross-site scripting attacks on legitimate sites where such payloads might be injected. While the exploitability is characterized as difficult and of high complexity, this typically implies that specific conditions must be met, such as convincing the user to interact with the page in a particular way or exploiting race conditions within the message handling logic. Nevertheless, the fact that an exploit has been published indicates that practical methods for leveraging this flaw exist, increasing the risk profile significantly despite the technical hurdles involved in execution.
From a classification perspective, this vulnerability aligns closely with CWE-927, which describes improper use of implicitly-defined security channels, specifically regarding the misuse of postMessage without origin validation. It also relates to CWE-200, an exposure of sensitive information to an unauthorized actor. In terms of offensive tactics, this scenario maps to MITRE ATT&CK technique T1530, Data from Local System, where data is collected directly from a compromised endpoint or application through local mechanisms rather than network exfiltration alone. The lack of strict origin checking allows the extension to act as an unintended bridge between untrusted web content and privileged browser storage, effectively creating a cross-extension scripting vulnerability similar in nature to Cross-Site Scripting but operating at the level of browser API interactions.
Mitigation strategies for this issue must prioritize immediate remediation by updating the DualSafe Password Manager & Digital Vault Extension to version 1.4.36 or later, where these validation checks have presumably been hardened. For organizations relying on this tool, it is advisable to enforce extension policies that restrict installation of unapproved extensions and monitor for any anomalous data access patterns within endpoint detection systems. Users should be educated about the risks of interacting with unknown web content when sensitive credential managers are active in their browser environment. Until patches are applied universally, security teams should consider disabling the extension if it is not strictly required for business operations to eliminate the attack surface entirely. Continuous monitoring and prompt application of vendor updates remain critical defenses against such client-side vulnerabilities that can undermine foundational identity protection mechanisms.