CVE-2025-61886: Fortinet FortiSandbox PaaS · Execute Unauthorized Code or Commands
Affects Fortinet FortiSandbox PaaSSource CVE Database V5
Public exploit available · CVSS 4.9 Medium · patch available : patch Fortinet FortiSandbox PaaS as a priority.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 14 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| FortinetFortiSandbox PaaS | Affected
| Fixed in– |
| FortinetFortiSandbox | Affected
| Fixed in– |
CPE configurations (10)
cpe:2.3:a:fortinet:fortisandboxpaas:5.0.4:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortisandboxpaas:5.0.3:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortisandboxpaas:5.0.2:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortisandboxpaas:5.0.1:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortisandboxpaas:5.0.0:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortisandbox:5.0.4:*:*:*:*:*:*:*
AI-suggested
An official fix is available from Fortinet to remediate this vulnerability. Users should apply the vendor-provided patch to affected versions 5.0.0 through 5.0.4 of FortiSandbox and FortiSandbox PaaS. Since this is not a cloud service, remediation requires updating the affected software installations. No additional mitigation steps are indicated by the vendor advisory.
Description
An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.4, FortiSandbox PaaS 5.0.0 through 5.0.4 may allow an attacker to perform an XSS attack via crafted HTTP requests.