CVE-2026-20112 — Cross-site Scripting in Cisco IOS XE Software

CWE-79 — Cross-site Scripting4 documents4 sources

Severity

4.8MEDIUMNVD

EPSS

0.0%

top 90.36%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Cisco IOS XE Software

Timeline

PublishedMar 25

Description

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 ex…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NExploitability: 1.7 | Impact: 2.7

Affected Packages1 packages

▶CVEListV5cisco/cisco_ios_xe_software226 versions+225

🔴Vulnerability Details

CVEList

CVE-2026-20112: A vulnerability in the web-based Cisco IOx application hosting environment management interface of Cisco IOS XE Software could allow an authenticated,↗2026-03-25

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GHSA

GHSA-mwjg-c924-h42v: A vulnerability in the web-based Cisco IOx application hosting environment management interface of Cisco IOS XE Software could allow an authenticated,↗2026-03-25

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📋Vendor Advisories

Cisco

Cisco IOx Application Hosting Environment Stored Cross-Site Scripting Vulnerability↗2026-03-25

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