CVE-2025-3087 in Web
Summary
by MITRE • 04/04/2025
Stored XSS in M-Files Web versions from 25.1.14445.5 to 25.2.14524.4 allows an authenticated user to run scripts
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Analysis
by VulDB Data Team • 11/19/2025
The vulnerability identified as CVE-2025-3087 represents a critical stored cross-site scripting flaw within M-Files Web applications across specific version ranges from 25.1.14445.5 through 25.2.14524.4. This security weakness enables authenticated attackers to inject malicious scripts into the application's data storage mechanisms, which then execute whenever other users view the affected content. The vulnerability operates by failing to properly sanitize user input before storing it within the application's database or content management system, creating a persistent vector for malicious code execution. The flaw specifically affects the web interface components of M-Files, which is a document management and collaboration platform widely used in enterprise environments for content lifecycle management and workflow automation.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding mechanisms within the application's web components. When authenticated users submit content containing malicious script tags or other XSS payloads through the M-Files Web interface, the system stores these inputs without proper sanitization or escaping. This stored data becomes executable when subsequent users access the affected pages, creating a classic stored XSS attack scenario. The vulnerability is particularly concerning because M-Files applications typically handle sensitive business documents and data, making the potential impact of script execution significant for both confidentiality and integrity. The flaw aligns with CWE-079, which specifically addresses cross-site scripting vulnerabilities where untrusted data is improperly integrated into web pages without adequate validation or encoding.
The operational impact of CVE-2025-3087 extends beyond simple script execution, as authenticated attackers can leverage this vulnerability to perform various malicious activities within the compromised environment. Attackers may inject scripts that steal session cookies, redirect users to malicious websites, or execute commands on behalf of other users with the same privileges as the compromised account. In enterprise settings where M-Files serves as a central document management system, this vulnerability could enable unauthorized access to sensitive corporate data, facilitate privilege escalation attacks, or serve as a foothold for broader network infiltration. The persistent nature of stored XSS means that the malicious code remains active until the affected content is manually removed or the application is patched, providing attackers with extended periods of operational capability. This vulnerability also relates to ATT&CK technique T1531 which involves the use of malicious code to gain access to systems and data.
Organizations utilizing affected M-Files Web versions should immediately implement mitigation strategies to address this vulnerability. The primary recommended action involves applying the vendor-provided security patches or updates that specifically address the stored XSS flaw in the affected version ranges. Additionally, implementing robust input validation controls, output encoding mechanisms, and web application firewalls can provide additional layers of protection against exploitation attempts. Security monitoring should be enhanced to detect unusual content submissions or script injection attempts within the application. Network segmentation and privileged access controls should be reviewed to limit the potential impact of successful exploitation. Regular security assessments and penetration testing should be conducted to identify other potential vulnerabilities within the M-Files deployment environment. Organizations should also consider implementing user education programs to raise awareness about social engineering techniques that attackers might use to exploit this vulnerability through authenticated access. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches and implementing defense-in-depth strategies to protect enterprise document management systems from persistent threats.