Cross-site Scripting in StoneFly Storage Concentrator
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Storage Concentrator (SC & SCVM) is vulnerable to reflected cross-site scripting due to unsanitized content being echoed back in 404 error pages. An attacker can craft a malicious URL that, when visited by an authenticated user, causes arbitrary script content to execute within the victim's browser session in the context of the application. This could be leveraged to steal session cookies, redirect users, or perform unauthorized actions on behalf of the victim.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Storage Concentrator (StoneFly) Fixed in 8.0.4.22, 8.0.4.29
- Fix · CNA Storage Concentrator Virtual Machine (StoneFly) Fixed in 8.0.4.22, 8.0.4.29
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
StoneFly Storage Concentrator, Storage Concentrator Virtual Machine 8.0.4.22
3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-40773 OS Command Injection in StoneFly Storage ConcentratorPriority MEDIUM 56
- TI-2026-40222 SQL Injection in StoneFly Storage ConcentratorPriority MEDIUM 46
Timeline
- 2026-10-02 Threatist record created from CVE-2026-50040
- 2026-10-03 Alias added: GHSA-8h25-3425-5fgh
References
More StoneFly vulnerabilities
- TI-2026-40773 OS Command Injection in StoneFly Storage Concentrator CVSS 4.0CRITICAL 10.0
- TI-2026-40771 OS Command Injection in StoneFly Storage Concentrator CVSS 4.0CRITICAL 10.0
- TI-2026-40222 SQL Injection in StoneFly Storage Concentrator CVSS 4.0CRITICAL 9.2
- TI-2026-36893 Use of Hard-coded Credentials in StoneFly Storage Concentrator CVSS 4.0CRITICAL 9.3
- TI-2024-21049 StoneFly Storage Concentrator (SC and SCVM) before 8.0.4.26 allows Directory Traversal by… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-50040 · CVE Program
- CVE-2026-50040 · NVD
- FIRST EPSS
- GHSA-8h25-3425-5fgh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences