Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2021-46387 Details

Description

ZyXEL ZyWALL 2 Plus Internet Security Appliance is affected by Cross Site Scripting (XSS). Insecure URI handling leads to bypass security restriction to achieve Cross Site Scripting, which allows an attacker able to execute arbitrary JavaScript codes to perform multiple attacks such as clipboard hijacking and session hijacking.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.html	CVE	ExploitThird Party AdvisoryVDB Entry
https://drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcN?usp=sharing	CVE	ExploitThird Party Advisory
https://www.zyxel.com/uk/en/products_services/zywall_2_plus.shtml	CVE	Broken LinkVendor Advisory
https://www.zyxel.com/us/en/support/security_advisories.shtml	CVE	Vendor Advisory
http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.html	[email protected]	ExploitThird Party AdvisoryVDB Entry
https://drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcN?usp=sharing	[email protected]	ExploitThird Party Advisory
https://www.zyxel.com/uk/en/products_services/zywall_2_plus.shtml	[email protected]	Broken LinkVendor Advisory
https://www.zyxel.com/us/en/support/security_advisories.shtml	[email protected]	Vendor Advisory

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
zyxel zywall 2 plus internet security appliance firmware	All versions
CPE cpe:2.3:o:zyxel:zywall_2_plus_internet_security_appliance_firmware:-:::::::* Remediation No remediation found in references.
zyxel zywall 2 plus internet security appliance	All versions
CPE cpe:2.3:h:zyxel:zywall_2_plus_internet_security_appliance:-:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Mar 9, 2022	Initial Analysis	[email protected]
Mar 2, 2022	CVE Modified	[email protected]