PT-2026-27795 · Cisco · Cisco Ios Xe

Published 2026-03-25 · Updated 2026-03-26 · CVE-2026-20112

NVD

CVSS v3.1

4.8

Medium

AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

A vulnerability in the web-based Cisco IOx application hosting environment management interface of Cisco IOS XE Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device.

This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid administrative credentials.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-20112

Affected Products

Cisco Ios Xe

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-20112 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-xss-LpGkzwtJ · Vendor Advisory
• https://reddit.com/r/pwnhub/comments/1s3q3cp/cisco_catalyst_switch_vulnerabilities_could_lead · Reddit Post
• https://twitter.com/the_yellow_fall/status/2036984814101029305 · Twitter Post