ZyXEL NAS 326 up to 5.21 cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in ZyXEL NAS 326 up to 5.21 and classified as problematic. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

An XSS vulnerability in the Zyxel NAS 326 version 5.21 and below allows a remote authenticated attacker to inject arbitrary JavaScript or HTML via the user, group, and file-share description fields.

The bug was discovered 04/04/2019. The weakness was published 04/09/2019. This vulnerability is handled as CVE-2019-10634 since 03/29/2019. The attack may be launched remotely. Required for exploitation is a simple authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at 133159, 133158, 133157 and 133156.






CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


03/29/2019 🔍
04/04/2019 +6 days 🔍
04/09/2019 +5 days 🔍
04/09/2019 +0 days 🔍
08/27/2023 +1601 days 🔍


Vendor: zyxel.com

Advisory: maxwelldulin.com
Status: Not defined

CVE: CVE-2019-10634 (🔍)
See also: 🔍


Created: 04/09/2019 07:53 PM
Updated: 08/27/2023 03:29 PM
Changes: 04/09/2019 07:53 PM (53), 05/27/2020 05:07 PM (1), 08/27/2023 03:29 PM (3)
Complete: 🔍


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