CVE-2025-58324 in FortiSIEM
Summary
by MITRE • 10/14/2025
An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiSIEM 7.2.0 through 7.2.2, 7.1 all versions, 7.0 all versions, 6.7 all versions, 6.6 all versions, 6.5 all versions, 6.4 all versions, 6.3 all versions, 6.2 all versions may allow an authenticated attacker to perform a stored cross site scripting (XSS) attack via crafted HTTP requests.
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Analysis
by VulDB Data Team • 10/16/2025
The vulnerability identified as CVE-2025-58324 represents a critical security flaw in FortiSIEM versions spanning multiple release lines including 7.2.0 through 7.2.2, 7.1 through 6.2 across all patch versions. This issue manifests as an improper neutralization of input during web page generation, which directly maps to CWE-79, the well-known weakness category for cross-site scripting vulnerabilities. The flaw exists within the application's handling of user-supplied data during the dynamic generation of web content, creating a persistent security gap that allows malicious actors to inject malicious scripts into web pages viewed by other users.
The technical implementation of this vulnerability enables an authenticated attacker to execute stored cross-site scripting attacks through carefully crafted HTTP requests that exploit the input validation deficiencies. When legitimate users interact with the affected FortiSIEM interface, they become unwitting victims of the stored XSS payload that has been injected into the application's data storage or display mechanisms. The authentication requirement for exploitation does not mitigate the severity of the impact, as the attacker can leverage their legitimate access privileges to inject malicious code that persists within the system's data structures.
Operational impact of this vulnerability extends beyond simple data theft or session hijacking, as it provides attackers with the capability to manipulate the web interface itself, potentially leading to unauthorized access to sensitive security monitoring data, modification of security policies, or even complete system compromise. The stored nature of the XSS attack means that the malicious payload remains active and executable whenever affected users access the vulnerable web interface, creating a persistent threat vector that can be exploited repeatedly without requiring additional authentication. This vulnerability directly violates the principle of least privilege and can enable attackers to escalate their privileges within the security monitoring environment.
Mitigation strategies for CVE-2025-58324 should prioritize immediate patching of all affected FortiSIEM versions to the latest available releases that contain the necessary input validation fixes. Organizations should implement comprehensive web application firewall rules to detect and block suspicious input patterns, while also establishing enhanced monitoring of user activity and web interface access logs for signs of exploitation attempts. Network segmentation and privilege separation measures can help limit the potential impact if exploitation occurs, though the most effective approach remains the immediate deployment of vendor-provided security updates. The vulnerability's classification under CWE-79 and its potential to enable persistent XSS attacks aligns with attack patterns documented in the MITRE ATT&CK framework under techniques related to client-side attacks and credential access, making it a high-priority remediation item for any organization relying on FortiSIEM for security information and event management operations.