CVE-2023-35139: XSS
First published: Tue Nov 28 2023(Updated: )
A cross-site scripting (XSS) vulnerability in the CGI program of the Zyxel ATP series firmware versions 5.10 through 5.37, USG FLEX series firmware versions 5.00 through 5.37, USG FLEX 50(W) series firmware versions 5.10 through 5.37, USG20(W)-VPN series firmware versions 5.10 through 5.37, and VPN series firmware versions 5.00 through 5.37, could allow an unauthenticated LAN-based attacker to store malicious scripts in a vulnerable device. A successful XSS attack could then result in the stored malicious scripts being executed to steal cookies when the user visits the specific CGI used for dumping ZTP logs.
Credit: security@zyxel.com.tw
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| Zyxel Zld | >=5.10<=5.37 | |
| Any of | ||
| Zyxel Multiple Network-Attached Storage (NAS) Devices | ||
| Zyxel Atp100w | ||
| Zyxel ATP200 | ||
| Zyxel Atp500 | ||
| Zyxel Atp700 | ||
| Zyxel Atp800 | ||
| All of | ||
| Zyxel Zld | >=5.00<=5.37 | |
| Any of | ||
| Zyxel Usg Flex 100 | ||
| Zyxel Usg Flex 100w | ||
| Zyxel Usg Flex 200 | ||
| Zyxel Usg Flex 50 | ||
| Zyxel Usg Flex 500 | ||
| Zyxel Usg Flex 50w | ||
| Zyxel Usg Flex 700 | ||
| All of | ||
| Zyxel Zld | >=5.10<=5.37 | |
| Any of | ||
| Zyxel Usg 20w-vpn | ||
| Zyxel Vpn50w | ||
| All of | ||
| Zyxel Zld | >=5.00<=5.37 | |
| Any of | ||
| Zyxel Vpn100 | ||
| Zyxel Multiple Network-Attached Storage (NAS) Devices | ||
| Zyxel Vpn300 | ||
| Zyxel Vpn50 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is CVE-2023-35139?
CVE-2023-35139 is a cross-site scripting (XSS) vulnerability in the CGI program of the Zyxel ATP series firmware versions 5.10 through 5.37, USG FLEX series firmware versions 5.00 through 5.37, USG FLEX 50(W) series firmware versions 5.10 through 5.37, USG20(W)-VPN series firmware versions 5.10 through 5.37, and VPN ...
What is the severity of CVE-2023-35139?
The severity of CVE-2023-35139 is medium with a severity value of 6.1.
How does CVE-2023-35139 affect Zyxel ATP series firmware?
CVE-2023-35139 affects Zyxel ATP series firmware versions 5.10 through 5.37, allowing for cross-site scripting (XSS) attacks.
How does CVE-2023-35139 affect USG FLEX series firmware?
CVE-2023-35139 affects USG FLEX series firmware versions 5.00 through 5.37, allowing for cross-site scripting (XSS) attacks.
How do I fix CVE-2023-35139?
To fix CVE-2023-35139, it is recommended to update the firmware of the affected devices to versions 5.38 or later, as provided by Zyxel.
- collector/nvd-api
- agent/references
- agent/severity
- agent/weakness
- agent/author
- agent/type
- agent/tags
- agent/description
- agent/event
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- collector/mitre-cve
- source/MITRE
- vendor/zyxel
- canonical/zyxel zld
- version/zyxel zld/5.10
- version/zyxel zld/5.37
- canonical/zyxel multiple network-attached storage (nas) devices
- canonical/zyxel atp100w
- canonical/zyxel atp200
- canonical/zyxel atp500
- canonical/zyxel atp700
- canonical/zyxel atp800
- version/zyxel zld/5.00
- canonical/zyxel usg flex 100
- canonical/zyxel usg flex 100w
- canonical/zyxel usg flex 200
- canonical/zyxel usg flex 50
- canonical/zyxel usg flex 500
- canonical/zyxel usg flex 50w
- canonical/zyxel usg flex 700
- canonical/zyxel usg 20w-vpn
- canonical/zyxel vpn50w
- canonical/zyxel vpn100
- canonical/zyxel vpn300
- canonical/zyxel vpn50