CVE-2026-26248
Summary
| CVE | CVE-2026-26248 |
|---|---|
| State | PUBLISHED |
| Assigner | fortinet |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-10 20:19:11 UTC |
| Updated | 2026-11-13 17:17:31 UTC |
| Description | A improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox 4.2 all versions, FortiSandbox Cloud 5.0.4 through 5.0.5, FortiSandbox PaaS 5.0.4 through 5.0.5 may allow an unauthenticated attacker to perform an XSS attack via social engineering and crafted HTTP requests. |
Risk And Classification
Primary CVSS: v3.1 8.8 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.005510000 probability, percentile 0.466290000 (date 2026-11-13)
Problem Types: CWE-79 | CWE-79 Execute unauthorized code or commands
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7.9 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Fortinet | FortiSandbox | affected 5.0.0 5.0.5 semver | Not specified |
| CNA | Fortinet | FortiSandbox | affected 4.4.0 4.4.8 semver | Not specified |
| CNA | Fortinet | FortiSandbox | affected 4.2.1 4.2.8 semver | Not specified |
| CNA | Fortinet | FortiSandbox Cloud | affected 5.0.4 5.0.5 semver | Not specified |
| CNA | Fortinet | FortiSandbox PaaS | affected 5.0.4 5.0.5 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| fortiguard.fortinet.com/psirt/FG-IR-26-142 | [email protected] | fortiguard.fortinet.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Solutions
CNA: Upgrade to FortiSandbox version 5.2.0 or above Upgrade to FortiSandbox version 5.0.6 or above Upgrade to FortiSandbox version 4.4.9 or above Upgrade to FortiSandbox PaaS version 5.2.0 or above Upgrade to FortiSandbox PaaS version 5.0.6 or above Upgrade to FortiSandbox Cloud version 5.0.6 or above
There are currently no legacy QID mappings associated with this CVE.