PT-2025-39297 · Cisco · Cisco Ios Xe

Published 2025-09-24 · Updated 2025-09-25 · CVE-2025-20240

Positive Technologies · (AI Summary)

CVSS v2.0

6.4

6.4

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

**Name of the Vulnerable Software and Affected Versions**

Cisco IOS XE Software (affected versions not specified)

**Description**

A flaw exists in the web UI of Cisco IOS XE Software that could allow a remote attacker to perform a reflected cross-site scripting (XSS) attack. This is caused by insufficient sanitization of user-provided input. An attacker could trick a user into clicking a malicious link, potentially leading to the execution of a reflected XSS attack and the theft of user cookies from the affected device.

**Recommendations**

At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-692

Related Identifiers

BDU:2025-11711

CVE-2025-20240

Affected Products

Cisco Ios Xe

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-20240 · Security Note
• https://bdu.fstec.ru/vul/2025-11711 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webui-xss-VWyDgjOU · Vendor Advisory
• https://twitter.com/leftSECURE/status/1971300024782111038 · Twitter Post
• https://twitter.com/CVEnew/status/1970906979036979524 · Twitter Post
• https://t.me/true_secator/7459 · Telegram Post
• https://twitter.com/0dayPublishing/status/1970903563736903761 · Twitter Post