CVE-2026-20088
Description
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with administrative privileges to conduct a stored XSS attack against a user of the interface.
This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Cisco IMC web interface stored XSS allows authenticated admin to execute arbitrary script in a user's browser via crafted link.
Vulnerability
Overview
CVE-2026-20088 is a stored cross-site scripting (XSS) vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC). The root cause is insufficient validation of user-supplied input, which allows an attacker to inject malicious script code that is later served to other users of the interface [1].
Exploitation
An attacker must first authenticate to the Cisco IMC interface with administrative privileges. The attacker then crafts a malicious link containing the XSS payload and persuades a user of the affected interface to click it. The vulnerability is triggered when the targeted user clicks the link, causing the injected script to execute in the context of the user's browser session [1].
Impact
Successful exploitation enables the attacker to execute arbitrary script code in the victim's browser. This can lead to access to sensitive browser-based information, such as session tokens or cookies, potentially allowing further compromise of the management sessions [1].
Mitigation
Cisco has released software updates that address this vulnerability. There are no workarounds available. Administrators are advised to upgrade to a fixed version of Cisco IMC as specified in the vendor advisory [1].
AI Insight generated on May 18, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
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