CVE-2025-20148
Cisco Secure Firewall Management Center HTML Injection Vulnerability
Description
A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could allow an authenticated, remote attacker to inject arbitrary HTML content into a device-generated document. This vulnerability is due to improper validation of user-supplied data. An attacker could exploit this vulnerability by submitting malicious content to an affected device and using the device to generate a document that contains sensitive information. A successful exploit could allow the attacker to alter the standard layout of the device-generated documents, read arbitrary files from the underlying operating system, and conduct server-side request forgery (SSRF) attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Security Analyst (Read Only).
Weakness: CWE-20
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Secure Firewall Management Center Check your version | Network & Security Management | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Firepower Management Center
Vendor advisory
cisco-sa-fmc-html-inj-MqjrZrny
Cisco Secure Firewall Management Center Software HTML Injection Vulnerability
Cisco’s rating: High (advisory CVSS 8.5) · Published Aug 14, 2025
Bug ID: CSCwk85702
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from