// For flags

CVE-2023-27990

 

Severity Score

4.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-03-09 CVE Reserved
  • 2023-04-24 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-11-14 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Zyxel
Search vendor "Zyxel"
Atp200 Firmware
Search vendor "Zyxel" for product "Atp200 Firmware"
>= 4.32 < 5.36
Search vendor "Zyxel" for product "Atp200 Firmware" and version " >= 4.32 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Atp200
Search vendor "Zyxel" for product "Atp200"
--
Safe
Zyxel
Search vendor "Zyxel"
Atp100 Firmware
Search vendor "Zyxel" for product "Atp100 Firmware"
>= 4.32 < 5.36
Search vendor "Zyxel" for product "Atp100 Firmware" and version " >= 4.32 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Atp100
Search vendor "Zyxel" for product "Atp100"
--
Safe
Zyxel
Search vendor "Zyxel"
Atp700 Firmware
Search vendor "Zyxel" for product "Atp700 Firmware"
>= 4.32 < 5.36
Search vendor "Zyxel" for product "Atp700 Firmware" and version " >= 4.32 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Atp700
Search vendor "Zyxel" for product "Atp700"
--
Safe
Zyxel
Search vendor "Zyxel"
Atp500 Firmware
Search vendor "Zyxel" for product "Atp500 Firmware"
>= 4.32 < 5.36
Search vendor "Zyxel" for product "Atp500 Firmware" and version " >= 4.32 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Atp500
Search vendor "Zyxel" for product "Atp500"
--
Safe
Zyxel
Search vendor "Zyxel"
Atp100w Firmware
Search vendor "Zyxel" for product "Atp100w Firmware"
>= 4.32 < 5.36
Search vendor "Zyxel" for product "Atp100w Firmware" and version " >= 4.32 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Atp100w
Search vendor "Zyxel" for product "Atp100w"
--
Safe
Zyxel
Search vendor "Zyxel"
Atp800 Firmware
Search vendor "Zyxel" for product "Atp800 Firmware"
>= 4.32 < 5.36
Search vendor "Zyxel" for product "Atp800 Firmware" and version " >= 4.32 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Atp800
Search vendor "Zyxel" for product "Atp800"
--
Safe
Zyxel
Search vendor "Zyxel"
Usg Flex 100 Firmware
Search vendor "Zyxel" for product "Usg Flex 100 Firmware"
>= 4.50 < 5.36
Search vendor "Zyxel" for product "Usg Flex 100 Firmware" and version " >= 4.50 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Usg Flex 100
Search vendor "Zyxel" for product "Usg Flex 100"
--
Safe
Zyxel
Search vendor "Zyxel"
Usg Flex 50 Firmware
Search vendor "Zyxel" for product "Usg Flex 50 Firmware"
>= 4.50 < 5.36
Search vendor "Zyxel" for product "Usg Flex 50 Firmware" and version " >= 4.50 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Usg Flex 50
Search vendor "Zyxel" for product "Usg Flex 50"
--
Safe
Zyxel
Search vendor "Zyxel"
Usg Flex 200 Firmware
Search vendor "Zyxel" for product "Usg Flex 200 Firmware"
>= 4.50 < 5.36
Search vendor "Zyxel" for product "Usg Flex 200 Firmware" and version " >= 4.50 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Usg Flex 200
Search vendor "Zyxel" for product "Usg Flex 200"
--
Safe
Zyxel
Search vendor "Zyxel"
Usg Flex 500 Firmware
Search vendor "Zyxel" for product "Usg Flex 500 Firmware"
>= 4.50 < 5.36
Search vendor "Zyxel" for product "Usg Flex 500 Firmware" and version " >= 4.50 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Usg Flex 500
Search vendor "Zyxel" for product "Usg Flex 500"
--
Safe
Zyxel
Search vendor "Zyxel"
Usg Flex 700 Firmware
Search vendor "Zyxel" for product "Usg Flex 700 Firmware"
>= 4.50 < 5.36
Search vendor "Zyxel" for product "Usg Flex 700 Firmware" and version " >= 4.50 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Usg Flex 700
Search vendor "Zyxel" for product "Usg Flex 700"
--
Safe
Zyxel
Search vendor "Zyxel"
Usg Flex 100w Firmware
Search vendor "Zyxel" for product "Usg Flex 100w Firmware"
>= 4.50 < 5.36
Search vendor "Zyxel" for product "Usg Flex 100w Firmware" and version " >= 4.50 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Usg Flex 100w
Search vendor "Zyxel" for product "Usg Flex 100w"
--
Safe
Zyxel
Search vendor "Zyxel"
Usg 20w-vpn Firmware
Search vendor "Zyxel" for product "Usg 20w-vpn Firmware"
>= 4.16 < 5.36
Search vendor "Zyxel" for product "Usg 20w-vpn Firmware" and version " >= 4.16 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Usg 20w-vpn
Search vendor "Zyxel" for product "Usg 20w-vpn"
--
Safe
Zyxel
Search vendor "Zyxel"
Usg Flex 50w Firmware
Search vendor "Zyxel" for product "Usg Flex 50w Firmware"
>= 4.16 < 5.36
Search vendor "Zyxel" for product "Usg Flex 50w Firmware" and version " >= 4.16 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Usg Flex 50w
Search vendor "Zyxel" for product "Usg Flex 50w"
--
Safe
Zyxel
Search vendor "Zyxel"
Usg20-vpn Firmware
Search vendor "Zyxel" for product "Usg20-vpn Firmware"
>= 4.30 < 5.36
Search vendor "Zyxel" for product "Usg20-vpn Firmware" and version " >= 4.30 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Usg20-vpn
Search vendor "Zyxel" for product "Usg20-vpn"
--
Safe
Zyxel
Search vendor "Zyxel"
Vpn100 Firmware
Search vendor "Zyxel" for product "Vpn100 Firmware"
>= 4.30 < 5.36
Search vendor "Zyxel" for product "Vpn100 Firmware" and version " >= 4.30 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Vpn100
Search vendor "Zyxel" for product "Vpn100"
--
Safe
Zyxel
Search vendor "Zyxel"
Vpn1000 Firmware
Search vendor "Zyxel" for product "Vpn1000 Firmware"
>= 4.30 < 5.36
Search vendor "Zyxel" for product "Vpn1000 Firmware" and version " >= 4.30 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Vpn1000
Search vendor "Zyxel" for product "Vpn1000"
--
Safe
Zyxel
Search vendor "Zyxel"
Vpn300 Firmware
Search vendor "Zyxel" for product "Vpn300 Firmware"
>= 4.30 < 5.36
Search vendor "Zyxel" for product "Vpn300 Firmware" and version " >= 4.30 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Vpn300
Search vendor "Zyxel" for product "Vpn300"
--
Safe
Zyxel
Search vendor "Zyxel"
Vpn50 Firmware
Search vendor "Zyxel" for product "Vpn50 Firmware"
>= 4.30 < 5.36
Search vendor "Zyxel" for product "Vpn50 Firmware" and version " >= 4.30 < 5.36"
-
Affected
in Zyxel
Search vendor "Zyxel"
Vpn50
Search vendor "Zyxel" for product "Vpn50"
--
Safe