Fortisiem
CVE-2026-25972
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 4.3 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: Required. Exploitation no authentication required. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker without authentication could exploit this vulnerability to a remote unauthenticated attacker to provide arbitrary data enabling a social en. |
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Alert meAnalysisAIv1 – Mar 12, 2026
FortiSIEM 7.3.0-7.3.4 and 7.4.0 are vulnerable to reflected cross-site scripting that allows unauthenticated remote attackers to inject malicious scripts through URL parameters, enabling social engineering attacks against users who click malicious links. The vulnerability requires user interaction to trigger but has no authentication requirements, making it practical for phishing campaigns that redirect victims to spoofed pages.
Earlier versions of this analysis (1)
An improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fortinet FortiSIEM 7.4.0, FortiSIEM 7.3.0 through 7.3.4 may allow a remote unauthenticated attacker to provide arbitrary data enabling a social engineering attack via spoofed URL parameters. [CVSS 4.3 MEDIUM]
RemediationAI
Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects the spoofed URL component of Fortisiem. An improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fortinet FortiSIEM 7.4.0, FortiSIEM 7.3.0 through 7.3.4 may allow a remote unauthenticated attacker to provide arbitrary data enabling a social engineering attack via spoofed URL parameters.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
An improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fortinet FortiSIEM 7.4.0, FortiSIEM 7.3.0 through 7.3.4 may allow a remote unauthenticated attacker to provide arbitrary data enabling a social engineering attack via spoofed URL parameters.
Executive ViewAI
CVE-2026-25972 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 4.3. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)CVE.org
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet a
An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in
Fortinet FortiSIEM (6.7.0 through 7.4.0) has OS command injection via crafted TCP requests. As a SIEM, compromise gives
An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet
A relative path traversal in Fortinet FortiSIEM versions 7.0.0, 6.7.0 through 6.7.2, 6.6.0 through 6.6.3, 6.5.1, 6.5.0 a
Path traversal in Fortinet FortiSIEM 7.5.0 can let a remote unauthenticated attacker execute unauthorized code or comman
An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet
A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiSIEM versi
A plaintext storage of a password vulnerability [CWE-256] in FortiSIEM 6.7 all versions, 6.6 all versions, 6.5 all versi
A improper authentication vulnerability in Fortinet FortiSIEM before 6.5.0 allows a local attacker with CLI access to pe
A improper privilege management in Fortinet FortiSIEM Windows Agent version 4.1.4 and below allows attacker to execute p
An exposure of sensitive information to an unauthorized actor [CWE-200] in FortiSIEM version 7.0.0 and before 6.7.5 may
GitHub PoC
Exploit-DB