Cross-site Scripting (XSS) Affecting mailman package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.36% (72nd percentile)

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  • Snyk IDSNYK-CENTOS7-MAILMAN-2004519
  • published26 Jul 2021
  • disclosed24 Feb 2020

Introduced: 24 Feb 2020

CVE-2020-12137  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 mailman.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mailman package and not the mailman package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

GNU Mailman 2.x before 2.1.30 uses the .obj extension for scrubbed application/octet-stream MIME parts. This behavior may contribute to XSS attacks against list-archive visitors, because an HTTP reply from an archive web server may lack a MIME type, and a web browser may perform MIME sniffing, conclude that the MIME type should have been text/html, and execute JavaScript code.

CVSS Scores

version 3.1