What is CVE-2023-27990?

CVE-2023-27990 is a medium-severity vulnerability in Zyxel Atp100, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2023-04-24.

How severe is CVE-2023-27990?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Zyxel Atp100

CVE-2023-27990

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (26.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Zyxel Atp100
Zyxel Atp100_firmware
Zyxel Atp100w
Zyxel Atp100w_firmware
Zyxel Atp200
Zyxel Atp200_firmware
Zyxel Atp500
Zyxel Atp500_firmware
Zyxel Atp700
Zyxel Atp700_firmware

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@zyxel.com.tw (Vendor Advisory)

Frequently asked questions

What is CVE-2023-27990?: CVE-2023-27990 is a medium-severity vulnerability in Zyxel Atp100, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2023-04-24.
How severe is CVE-2023-27990?: Medium severity. CVSS v3 base score is 4.8 out of 10.