SB2020062412 - Path traversal in mjml framework
Published: June 24, 2020
Security Bulletin ID
SB2020062412
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Path traversal (CVE-ID: CVE-2020-12827)
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.
References
- 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