CVE-2021-20137

A reflected cross-site scripting vulnerability exists in the url parameter of the /cgi-bin/luci/site_access/ page on the Gryphon Tower router's web interface. An attacker could exploit this issue by tricking a user into following a specially crafted link, granting the attacker javascript execution in the context of the victim's browser.

CVSS v3.1

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

2.56% chance of exploitation in the next 30 days, 84th percentile

Nuclei

medium · CWE-79

Published

2021-12-09

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://www.tenable.com/security/research/tra-2021-51

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-20137.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2021-20136
• CVE-2021-20138
• CVE-2021-20134
• CVE-2021-20139
• CVE-2021-20133
• CVE-2021-20140