6.8
CVSSv2

CVE-2021-45268

Published: 03/02/2022 Updated: 11/04/2024
CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6
CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8
VMScore: 605
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Summary

A Cross Site Request Forgery (CSRF) vulnerability exists in Backdrop CMS 1.20, which allows Remote malicious users to gain Remote Code Execution (RCE) on the Hosting Webserver via uploading a maliciously add-on with crafted PHP file. NOTE: the vendor disputes this because the attack requires a session cookie of a high-privileged authenticated user who is entitled to install arbitrary add-ons

Vulnerability Trend

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backdropcms backdrop 1.20.0

Github Repositories

CSRF to RCE on Backdrop CMS 120 This PoC describe how to exploit CSRF on Backdrop CMS Version 120 with escalation to RCE ## CVE ID CVE-2021-45268 Description The Backdrop CMS version 120 allows plugins to be added via ZIP files uploaded to the site And because it does not have anti-CSRF protection, it is possible for an attacker to create a plugin with a file that allows e