IP Whitelist Bypass in Knock Knock Plugin for Craft CMS
CVE-2020-13485

9.1CRITICAL

Key Information:

Vendor

Verbb

Status
Knock Knock
Vendor
CVE Published:
25 May 2020

What is CVE-2020-13485?

The Knock Knock plugin for Craft CMS prior to version 1.2.8 contains a vulnerability that enables an attacker to bypass the IP Whitelist through manipulation of the X-Forwarded-For HTTP header. This can potentially allow unauthorized access to the application, compromising its integrity and security. It is crucial for users of the plugin to update to the latest versions to mitigate risks associated with this vulnerability.

References

https://github.com/verbb/knock-knock/blob/craft-3/CHANGEL...
x_refsource_MISC
https://limpidsecurity.pl/security-advisories/1/knock-kno...
x_refsource_MISC

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.