CVE-2021-45268 — HIGH (8.8)

Vulnerability Description

A Cross Site Request Forgery (CSRF) vulnerability exists in Backdrop CMS 1.20, which allows Remote Attackers 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

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Backdropcms	Backdrop	1.20.0

Related Weaknesses (CWE)

CWE-352

References

https://github.com/V1n1v131r4/CSRF-to-RCE-on-Backdrop-CMSExploitThird Party Advisory
https://www.exploit-db.com/exploits/50323Third Party AdvisoryVDB Entry
https://github.com/V1n1v131r4/CSRF-to-RCE-on-Backdrop-CMSExploitThird Party Advisory
https://www.exploit-db.com/exploits/50323Third Party AdvisoryVDB Entry

FAQ

What is CVE-2021-45268?

CVE-2021-45268 is a vulnerability with a CVSS score of 8.8 (HIGH). A Cross Site Request Forgery (CSRF) vulnerability exists in Backdrop CMS 1.20, which allows Remote Attackers to gain Remote Code Execution (RCE) on the Hosting Webserver via uploading a maliciously ad...

How severe is CVE-2021-45268?

CVE-2021-45268 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-45268?

Check the references section above for vendor advisories and patch information. Affected products include: Backdropcms Backdrop.