CVE-2023-27990

Published: Apr 24, 2023

Modified: Aug 2, 2024

PUBLISHED

CVSS v3.1

4.8

MEDIUM

Description

The cross-site scripting (XSS) vulnerability in Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker with administrator privileges to store malicious scripts in a vulnerable device. A successful XSS attack could then result in the stored malicious scripts being executed when the user visits the Logs page of the GUI on the device.

Vendor	Product	Versions
Zyxel	ATP series firmware	affected `4.32 through 5.35`
Zyxel	USG FLEX series firmware	affected `4.50 through 5.35`
Zyxel	USG FLEX 50(W) firmware	affected `4.16 through 5.35`
Zyxel	USG20(W)-VPN firmware	affected `4.16 through 5.35`
Zyxel	VPN series firmware	affected `4.30 through 5.35`

Weaknesses (CWE)

CWE-79

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-xss-vulnerability-and-post-authentication-command-injection-vulnerability-in-firewalls

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CVE-2023-27990

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References