Medium severity6.1NVD Advisory· Published Mar 1, 2022· Updated Jun 17, 2026
CVE-2021-46387
CVE-2021-46387
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- cpe:2.3:o:zyxel:zywall_2_plus_internet_security_appliance_firmware:-:*:*:*:*:*:*:*
- ZyXEL/ZyWALL 2 Plus Internet Security Appliancedescription
Patches
Vulnerability mechanics
References
4- packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.htmlnvdExploitThird Party AdvisoryVDB Entry
- drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcNnvdExploitThird Party Advisory
- www.zyxel.com/uk/en/products_services/zywall_2_plus.shtmlnvdBroken LinkVendor Advisory
- www.zyxel.com/us/en/support/security_advisories.shtmlnvdVendor Advisory
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