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CVE-2021-20137

MEDIUM
6.1
CVSS Score
Published: December 9, 2021 at 03:24 PM UTC
Updated: June 17, 2026 at 03:33 AM UTC
3 products affected across 2 vendorsGryphon Tower FirmwareGryphon TowerGryphon Tower

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Severity
MEDIUM6.1
Exploit prediction
EPSS 2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Gryphon Tower Firmware· Gryphonconnect
95%
v ≤ 04.0004.12
gryphonconnect-gryphon-tower (same device)
Gryphon Tower· Tenable
60%
v ≤ 4.0004.12
Gryphon Tower· Gryphonconnectdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.tenable.com/security/research/tra-2021-51

CVSS

6.1MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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