CVE-2025-20240
A vulnerability in the Web Authentication feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting attack (XSS) on an affected devic
Description
A vulnerability in the Web Authentication feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting attack (XSS) on an affected device. This vulnerability is due to improper sanitization of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a malicious link. A successful exploit could allow the attacker to execute a reflected XSS attack and steal user cookies from the affected device.
Weakness: CWE-692
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco IOS XE Software | Routing & Switching | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco IOS XE Software
Vendor advisory
Cisco IOS XE Software Web Authentication Reflected Cross-Site Scripting Vulnerability
Cisco’s rating: Medium (advisory CVSS 6.1) · Published Sep 24, 2025 · updated Sep 26, 2025 (revision 1.1)
Bug ID: CSCwm57073
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from