CVE-2025-2141 Overview
CVE-2025-2141 is a stored cross-site scripting (XSS) vulnerability affecting the IBM System Storage Virtualization Engine TS7700 Web UI. The flaw exists in the 3957 VED, 3948 VED, and 3948 VEF firmware across releases R5.4 (8.54.2.17) and R6.0 (8.60.0.115). An authenticated user can embed arbitrary JavaScript in the Web UI, altering intended functionality and potentially exposing credentials within a trusted session. The issue is tracked under CWE-79 and disclosed via IBM Support Page.
Critical Impact
Authenticated attackers can inject JavaScript into the TS7700 Web UI, hijacking trusted sessions and disclosing credentials of other administrators interacting with the interface.
Affected Products
- IBM System Storage Virtualization Engine TS7700 3957 VED firmware R5.4 8.54.2.17 and R6.0 8.60.0.115
- IBM System Storage Virtualization Engine TS7700 3948 VED firmware R5.4 8.54.2.17 and R6.0 8.60.0.115
- IBM System Storage Virtualization Engine TS7700 3948 VEF firmware R6.0 8.60.0.115
Discovery Timeline
- 2025-07-01 - CVE-2025-2141 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-2141
Vulnerability Analysis
CVE-2025-2141 is a cross-site scripting (XSS) weakness [CWE-79] in the management Web UI of the TS7700 virtualization engine. The application fails to neutralize user-controlled input before rendering it in HTML output returned to other users of the interface. An authenticated user with access to a data-entry field can persist a JavaScript payload that later executes in the browser context of any administrator viewing the affected view.
Because the payload runs inside the authenticated session of the victim, the attacker inherits the victim's privileges within the Web UI. Session cookies, CSRF tokens, cached credentials submitted through forms, and administrative actions can all be accessed or triggered. In storage infrastructure such as TS7700, this exposure can extend to tape virtualization configuration, grid replication settings, and backup policies.
Root Cause
The root cause is improper output encoding of user-supplied strings rendered by the TS7700 management interface. Input accepted through authenticated Web UI forms is stored server-side and later reflected into pages without contextual HTML, attribute, or JavaScript encoding, allowing script tags and event handlers to survive to the DOM.
Attack Vector
Exploitation is network-based and requires an authenticated session plus user interaction from a second user viewing the injected content. The attacker submits a malicious payload through a vulnerable Web UI field, and script execution occurs when another authenticated user loads the page. The scope change indicates that the injected script can affect resources beyond the vulnerable component, such as browser-side credentials or linked administrative interfaces.
No verified proof-of-concept is publicly available. See the IBM Support Page for vendor details.
Detection Methods for CVE-2025-2141
Indicators of Compromise
- TS7700 Web UI pages returning HTML containing <script> tags, on* event handlers, or javascript: URIs inside configuration fields
- Unexpected outbound browser requests from administrator workstations to attacker-controlled domains during TS7700 UI sessions
- Audit log entries showing configuration changes performed by administrators shortly after loading UI views authored by another user
Detection Strategies
- Inspect HTTP responses from the TS7700 management interface for reflected or stored input containing HTML control characters that were not encoded
- Review Web UI audit logs for input fields modified by low-privilege authenticated accounts and later rendered to higher-privilege users
- Correlate browser-side JavaScript errors or CSP violations on administrator endpoints with TS7700 UI navigation
Monitoring Recommendations
- Forward TS7700 Web UI access and audit logs to a centralized SIEM and alert on anomalous field content containing script markup
- Monitor administrator workstation network telemetry for connections to unusual domains initiated during TS7700 sessions
- Track user account behavior on the appliance and flag accounts that repeatedly edit descriptive or free-text configuration fields
How to Mitigate CVE-2025-2141
Immediate Actions Required
- Apply the firmware updates referenced in the IBM Support Page for all affected 3957 VED, 3948 VED, and 3948 VEF systems
- Restrict Web UI access to a management network segment and known administrator workstations
- Audit existing configuration fields in the TS7700 Web UI for stored HTML or JavaScript content and remove any unexpected values
- Rotate credentials for any accounts that may have loaded a compromised UI view
Patch Information
IBM has published remediation guidance in the security bulletin at the IBM Support Page. Administrators running 3957 VED or 3948 VED firmware R5.4 8.54.2.17 and R6.0 8.60.0.115, or 3948 VEF R6.0 8.60.0.115, should upgrade to the fixed firmware level identified in the bulletin.
Workarounds
- Limit TS7700 Web UI accounts to the minimum number of trusted administrators until firmware is upgraded
- Enforce isolated, hardened browsers dedicated to storage administration to reduce cross-session credential exposure
- Require administrators to log out of the Web UI when not actively managing the appliance to shorten the window for script execution
# Configuration example: restrict Web UI access at the network edge
# Replace 10.10.20.0/24 with your storage management subnet
iptables -A INPUT -p tcp --dport 443 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
