CVE-2025-1484 Overview
A Cross-Site Scripting (XSS) vulnerability exists in the media upload component of Hitachi Energy Asset Suite. This vulnerability stems from incomplete filtering mechanisms (CWE-184) that fail to properly sanitize user-supplied input during media uploads. If successfully exploited, an attacker could impact the confidentiality or integrity of the system by constructing malicious requests that cause JavaScript code to execute within a victim user's browser session.
Critical Impact
Attackers can execute arbitrary JavaScript code in the context of authenticated user sessions, potentially leading to session hijacking, credential theft, or unauthorized actions on behalf of the victim.
Affected Products
- Hitachi Energy Asset Suite (affected versions not specified in advisory)
Discovery Timeline
- May 30, 2025 - CVE-2025-1484 published to NVD
- May 30, 2025 - Last updated in NVD database
Technical Details for CVE-2025-1484
Vulnerability Analysis
This vulnerability affects the media upload component within Hitachi Energy Asset Suite. The flaw allows attackers to bypass input validation mechanisms and inject malicious JavaScript code that executes in the browser context of other users who interact with the compromised content. The attack requires user interaction, meaning a victim must view or interact with the uploaded malicious content for the payload to execute. The vulnerability can impact both the immediate vulnerable system and downstream connected systems, potentially allowing attackers to compromise confidentiality and integrity across the broader application environment.
Root Cause
The root cause of this vulnerability is CWE-184: Incomplete List of Disallowed Inputs. The media upload component implements a blocklist-based filtering approach that fails to account for all potential attack vectors. This incomplete filtering allows attackers to craft payloads that bypass the existing security controls, enabling the injection of malicious JavaScript code through specially crafted media upload requests.
Attack Vector
The attack is network-based and requires low privileges (authenticated access) along with some user interaction. An attacker with valid credentials to the Asset Suite application can upload malicious content through the media upload feature. When another authenticated user views or interacts with this uploaded content, the attacker-supplied JavaScript executes within that user's session context.
The exploitation flow typically involves:
- Attacker authenticates to the Asset Suite application
- Attacker crafts a malicious payload designed to bypass the incomplete input filter
- Attacker uploads the payload through the media upload component
- Victim user views or interacts with the uploaded content
- Malicious JavaScript executes in the victim's browser session
Detection Methods for CVE-2025-1484
Indicators of Compromise
- Unusual or obfuscated JavaScript code patterns within uploaded media content
- Media uploads containing script tags, event handlers, or encoded JavaScript payloads
- Unexpected HTTP requests originating from user sessions to external domains
- User reports of unusual application behavior after viewing uploaded content
Detection Strategies
- Implement web application firewall (WAF) rules to detect and block common XSS payload patterns in upload requests
- Monitor application logs for unusual media upload patterns or repeated upload attempts with similar obfuscated content
- Deploy browser-based security controls to detect and alert on suspicious script execution
- Conduct regular security scans of uploaded content repositories for malicious payloads
Monitoring Recommendations
- Enable detailed logging on the media upload component to capture request parameters and content metadata
- Configure alerts for upload requests containing suspicious character sequences or encoding patterns
- Monitor user session activity for anomalous behavior following interactions with uploaded content
- Implement Content Security Policy (CSP) headers and monitor for CSP violation reports
How to Mitigate CVE-2025-1484
Immediate Actions Required
- Review and restrict access to the media upload functionality to only essential users
- Implement additional input validation and output encoding on the media upload component
- Enable Content Security Policy headers to limit the impact of successful XSS exploitation
- Monitor for suspicious activity related to uploaded media content
Patch Information
Hitachi Energy has released a security advisory for this vulnerability. Organizations running affected versions of Asset Suite should consult the Hitachi Energy Security Advisory for detailed patching instructions and updated software versions.
Workarounds
- Temporarily disable or restrict access to the media upload functionality until patches can be applied
- Implement strict Content Security Policy headers to prevent inline script execution
- Add additional server-side validation using an allowlist approach for permitted file types and content
- Deploy a web application firewall with rules specifically targeting XSS attack patterns in upload requests
# Example CSP header configuration to mitigate XSS impact
# Add to web server configuration
Content-Security-Policy: default-src 'self'; script-src 'self'; object-src 'none'; frame-ancestors 'self'
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
