CVE-2025-13232 in projectsend
Summary
by MITRE • 11/16/2025
A flaw has been found in projectsend up to r1720. Impacted is an unknown function of the component File Editor/Custom Download Aliases. This manipulation causes cross site scripting. The attack is possible to be carried out remotely. The exploit has been published and may be used. Upgrading to version r1945 is recommended to address this issue. Patch name: 334da1ea39cb12f6b6e98dd2f80bb033e0c7b845. It is advisable to upgrade the affected component.
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Analysis
by VulDB Data Team • 11/18/2025
The vulnerability identified as CVE-2025-13232 represents a critical cross site scripting flaw within the projectsend platform, specifically affecting versions up to r1720. This security weakness resides within the File Editor/Custom Download Aliases component, which serves as a mechanism for managing file access and download configurations. The flaw allows malicious actors to inject arbitrary JavaScript code through improperly sanitized input parameters, creating a persistent threat vector that can be exploited by attackers without requiring authentication or physical access to the system. The vulnerability's classification as a remote exploit means that threat actors can leverage this weakness from external networks, potentially compromising user sessions and executing unauthorized actions on behalf of victims. This represents a significant concern for organizations relying on projectsend for file sharing and management operations, as the vulnerability could enable attackers to escalate privileges, steal session cookies, or redirect users to malicious websites.
The technical implementation of this cross site scripting vulnerability stems from inadequate input validation and output sanitization within the affected component. When users interact with the File Editor functionality, particularly when creating or modifying custom download aliases, the system fails to properly sanitize user-supplied data before rendering it within the web interface. This allows attackers to inject malicious scripts that execute in the context of other users' browsers, potentially leading to session hijacking, data theft, or further exploitation of the compromised systems. The vulnerability demonstrates poor secure coding practices and highlights the importance of implementing proper input validation mechanisms. According to CWE standards, this flaw maps to CWE-79, which specifically addresses cross site scripting vulnerabilities resulting from insufficient sanitization of user-controllable input data. The attack vector operates through standard web browser interactions, making it particularly dangerous as it requires minimal technical expertise to exploit and can affect any user who interacts with the vulnerable application interface.
The operational impact of this vulnerability extends beyond simple script execution, potentially enabling sophisticated attack chains that can compromise entire user environments. Attackers can leverage this vulnerability to steal sensitive information, manipulate file access controls, or redirect users to phishing sites that can harvest credentials and other sensitive data. The fact that exploitation has been published and is actively used in the wild significantly increases the risk to affected organizations, as it removes the need for advanced technical skills to carry out attacks. Organizations running projectsend versions prior to r1945 face immediate risk of compromise, particularly those with users who have access to the file editor functionality. The vulnerability's impact is further compounded by the potential for privilege escalation, as attackers may be able to manipulate the system's file access controls to gain unauthorized access to sensitive documents or system resources. This type of vulnerability also creates opportunities for attackers to establish persistent access through the execution of malicious scripts that can maintain presence across user sessions.
Mitigation strategies for CVE-2025-13232 center exclusively on upgrading to the patched version r1945, which incorporates the security fix identified by the patch identifier 334da1ea39cb12f6b6e98dd2f80bb033e0c7b845. This upgrade represents the primary and most effective remediation approach, as it addresses the root cause of the vulnerability through proper input sanitization and validation mechanisms. Organizations should immediately prioritize this upgrade process, particularly for systems hosting sensitive data or those with high user interaction volumes. Additionally, network administrators should consider implementing web application firewalls to provide additional layers of protection, though this should not be considered a substitute for the mandatory version upgrade. Security teams should also conduct comprehensive vulnerability assessments to identify any potential exploitation attempts that may have already occurred, as the published exploit code increases the likelihood of active attacks. The vulnerability's presence in the File Editor/Custom Download Aliases component suggests that organizations should also review their access control policies and user permissions to minimize the potential impact of any successful exploitation attempts. This remediation effort aligns with established security practices outlined in the ATT&CK framework under the T1566 technique for credential access through social engineering, as the vulnerability could enable attackers to harvest user credentials through session manipulation. Organizations should also implement monitoring solutions to detect unusual activity patterns that might indicate exploitation attempts or successful compromises of the vulnerable system components.