CVE-2025-57932 is a stored Cross-site Scripting (XSS) vulnerability identified in the Diego Pereira PowerFolio product, affecting versions up to and including 3.2.1. The vulnerability arises from improper neutralization of input during web page generation, classified under CWE-79. Specifically, the application fails to adequately sanitize or encode user-supplied input before rendering it in web pages, allowing malicious scripts to be stored and subsequently executed in the browsers of users who access the affected pages. The CVSS v3.1 base score is 6.5, indicating a medium severity level. The vector string (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L) reveals that the attack can be launched remotely over the network with low attack complexity, requires privileges (likely an authenticated user), and user interaction (victim must visit a maliciously crafted page). The scope is changed, meaning the vulnerability affects components beyond the initially vulnerable component. The impact includes low confidentiality, integrity, and availability impacts, consistent with typical stored XSS risks such as session hijacking, defacement, or phishing. No known exploits are currently reported in the wild, and no patches have been linked yet. Stored XSS vulnerabilities are particularly dangerous because the malicious payload is persistently stored on the server and delivered to multiple users, increasing the attack surface and potential damage. PowerFolio is a web-based application, and such vulnerabilities can be exploited to compromise user accounts, steal sensitive information, or perform unauthorized actions within the context of the victim's session.

For European organizations using Diego Pereira PowerFolio, this vulnerability poses a significant risk to user data confidentiality and integrity. Attackers exploiting this stored XSS could hijack user sessions, steal credentials, or inject malicious content that could lead to phishing or malware distribution within the organization. This can result in reputational damage, regulatory non-compliance (e.g., GDPR violations due to data breaches), and operational disruptions. Given the scope change in the CVSS vector, the vulnerability might affect multiple components or user roles, potentially amplifying the impact. Organizations with users who have elevated privileges in PowerFolio are at higher risk, as attackers could leverage the vulnerability to escalate privileges or pivot to other internal systems. The requirement for user interaction means that social engineering or phishing campaigns could be used to lure victims to malicious pages, increasing the likelihood of successful exploitation. The absence of known exploits in the wild currently provides a window for mitigation before widespread attacks occur.

European organizations should implement a multi-layered mitigation strategy: 1) Apply input validation and output encoding: Ensure all user inputs are properly sanitized and encoded before rendering in web pages, following OWASP XSS prevention guidelines. 2) Implement Content Security Policy (CSP): Deploy strict CSP headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. 3) Enforce least privilege: Limit user privileges in PowerFolio to reduce the potential damage from compromised accounts. 4) User awareness training: Educate users about the risks of clicking on suspicious links or interacting with untrusted content. 5) Monitor logs and web traffic: Detect anomalous activities that may indicate exploitation attempts. 6) Segmentation and isolation: Isolate PowerFolio instances and sensitive data to limit lateral movement. 7) Patch management: Monitor vendor updates closely and apply patches promptly once available. 8) Implement Web Application Firewall (WAF): Use a WAF with rules to detect and block XSS payloads targeting PowerFolio. These measures, combined, will reduce the risk and potential impact of exploitation.