CVE-2020-13485

critical

Description

The Knock Knock plugin before 1.2.8 for Craft CMS allows IP Whitelist bypass via an X-Forwarded-For HTTP header.

References

https://limpidsecurity.pl/security-advisories/1/knock-knock-plugin-for-craft-cms/

https://github.com/verbb/knock-knock/blob/craft-3/CHANGELOG.md

Details

Source: Mitre, NVD

Published: 2020-05-25

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 9.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

EPSS

EPSS: 0.00307