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Medium 6.1Published Jun 30, 2026

CVE-2026-50040Cross-site Scripting in StoneFly Storage Concentrator

Updated under an hour ago ()

Does this affect you?

It affects StoneFly Storage Concentrator and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
icscert
NVD analysis
Deferred
Record last updated
Jul 1, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
StoneFly Storage Concentrator
stonefly:storage_concentrator (from the name)
before 8.0.4.22; 8.0.4.29 not affected
CNA record
StoneFly Storage Concentrator Virtual Machine
stonefly:storage_concentrator_virtual_machine (from the name)
before 8.0.4.22; 8.0.4.29 not affected
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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