Cross-site scripting in Fortinet FortiSIEM
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
An Improper Neutralization of Input vulnerability in the description and title parameters of a Device Maintenance Schedule in FortiSIEM version 5.2.5 and below may allow a remote authenticated attacker to perform a Stored Cross Site Scripting attack (XSS) by injecting malicious JavaScript code into the description field of a Device Maintenance schedule.
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
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-17651
- 2026-10-03 Alias added: GHSA-vpwg-c4h3-2hjj
- 2026-11-07 EPSS moved to the 50th–90th percentile
References
More Fortinet Fortisiem vulnerabilities
- TI-2024-15229 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
- TI-2023-17481 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
- TI-2025-18918 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
- TI-2025-39605 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.4
- TI-2024-15230 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
- TI-2023-18387 OS command injection in Fortinet FortiSIEM CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-17651 · CVE Program
- CVE-2019-17651 · NVD
- FIRST EPSS
- GHSA-vpwg-c4h3-2hjj · 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