#VU29232 Path traversal in mjml - CVE-2020-12827
Published: June 24, 2020
Vulnerability identifier: #VU29232
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-12827
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
mjml
mjml
Software vendor:
mjml.io
mjml.io
Description
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing the "mj-include" directive within an MJML. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.
Remediation
Install update from vendor's website.
External links
- http://packetstormsecurity.com/files/158111/MJML-4.6.2-Path-Traversal.html
- http://seclists.org/fulldisclosure/2020/Jun/23
- https://github.com/mjmlio/mjml/commit/30e29ed2cdaec8684d60a6d12ea07b611c765a12
- https://github.com/mjmlio/mjml/releases/tag/v4.6.3
- https://mjml.io/community
- https://rcesecurity.com
- https://twitter.com/mjmlio