Cross-site scripting in Mailman - CVE-2018-5950
Published: February 9, 2018 / Updated: June 17, 2021
Vulnerability identifier: #VU10445
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2018-5950
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
Vulnerability allows a remote attacker to perform XSS attacks.
The vulnerability is caused by an input validation error in the web UI in Mailman before 2.1.26. A remote unauthenticated attacker can trick the victim to follow a specially specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
Mailman
Debian Linux
Amazon Linux AMI
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power
Ubuntu
Fedora
mailman
Debian Linux
Amazon Linux AMI
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power
Ubuntu
Fedora
mailman
How to mitigate CVE-2018-5950
Update to version 2.1.26
mailman - addressed in versions 2.1.21-5.fc27, 2.1.21-8.fc27