CVE-2019-19461 in Team Password Manager
Summary
by MITRE
Post-authentication Stored XSS in Team Password Manager through 7.93.204 allows attackers to steal other users' credentials by creating a shared password with HTML code as the title.
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Analysis
by VulDB Data Team • 05/12/2025
The vulnerability CVE-2019-19461 represents a critical stored cross-site scripting flaw in Team Password Manager versions up to 7.93.204 that occurs post-authentication. This security weakness allows authenticated attackers to inject malicious HTML code into shared password entries, specifically targeting the title field of password items. The vulnerability stems from inadequate input validation and output sanitization mechanisms within the application's password management interface, creating a persistent XSS vector that can affect multiple users who view the compromised password entries.
The technical implementation of this vulnerability involves the application failing to properly sanitize user-supplied input when storing password titles in its database. When an attacker creates a shared password entry with malicious HTML code in the title field, the application stores this unfiltered content without proper encoding or validation. Subsequently, when other users access the password manager interface and view the compromised entry, the malicious script executes in their browser context, potentially stealing session cookies, credentials, or performing other malicious actions. This stored XSS vulnerability operates under CWE-79 which categorizes improper neutralization of input during web output, specifically targeting the rendering of user-controllable data without appropriate sanitization measures.
The operational impact of this vulnerability extends beyond simple credential theft, as it enables attackers to establish persistent access vectors within the password management system. An attacker who successfully exploits this vulnerability can execute arbitrary JavaScript code in the context of other users' browsers, potentially leading to session hijacking, privilege escalation, or data exfiltration. The attack requires only basic authentication access to the password manager, making it particularly dangerous as it can be exploited by insiders or compromised accounts. This vulnerability aligns with ATT&CK technique T1566.001 which covers credential access through phishing and social engineering, as the malicious payloads can be crafted to appear legitimate within the password manager interface.
Mitigation strategies for CVE-2019-19461 should focus on implementing robust input validation and output encoding mechanisms throughout the application's data flow. Organizations must ensure that all user-supplied content, particularly in fields that are rendered in web interfaces, undergoes proper sanitization before storage and output. The implementation of Content Security Policy headers can provide additional protection against XSS attacks, while regular security audits and code reviews should identify similar input validation gaps. Application developers should adopt secure coding practices including the use of context-appropriate encoding functions for different output contexts, such as HTML, JavaScript, and URL encoding. Additionally, implementing proper access controls and monitoring for unusual administrative activities can help detect exploitation attempts. The vulnerability underscores the importance of defense-in-depth approaches in password management systems, where multiple layers of protection are necessary to prevent successful exploitation of such critical flaws.