CVE-2023-27990 - CVE House
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Status published Medium CVE-2023-27990

The cross-site scripting (XSS) vulnerability in Zyxel ATP series firmware...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

ATP series firmware, USG FLEX series firmware, USG FLEX 50(W) firmware, USG20(W)-VPN firmware, VPN series firmware
Vulnerable Versions:
4.32 through 5.35, 4.50 through 5.35, 4.16 through 5.35, 4.30 through 5.35

Timeline

Official Publish: April 24th, 2023
Last Modified: August 2nd, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)