CVE-2026-26248: Fortinet FortiSandbox Cloud cross-site scripting (XSS)
This Fortinet advisory covers CVE-2026-26248 in FortiSandbox Cloud and FortiSandbox PaaS.
- CVE-2026-26248
Key facts
- Vendor rating
- High, CVSS 7.9
- CVSS vector
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· base score 7.9, scored by fortinetAttack vector: network. Attack complexity: low. Privileges required: none. User interaction: required. Scope: unchanged. Confidentiality impact: high. Integrity impact: high. Availability impact: high.- Weakness
- CWE-79 Execute unauthorized code or commands
- CISA KEV
- Not listed (catalogue checked )
- Affected
- FortiSandbox: 4.4.0 through 5.0.5 (vendor-listed versions); FortiSandbox Cloud: 5.0.4 through 5.0.5 (vendor-listed versions); FortiSandbox PaaS: 5.0.4 through 5.0.5 (vendor-listed versions)
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
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 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.
Text from the source record.
- FortiSandbox: 4.4.0 through 5.0.5 (vendor-listed versions)
- FortiSandbox Cloud: 5.0.4 through 5.0.5 (vendor-listed versions)
- FortiSandbox PaaS: 5.0.4 through 5.0.5 (vendor-listed versions)
Official advisory · high-confidence parse· fetched ·verify at source
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