CVE-2018-5950

Name: CVE-2018-5950
Creator: NVD / NIST
Published: 2018-01-23T16:29:01.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 4.60%

Last modified Jun 17, 2026

CVE-2018-5950 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross-site scripting (XSS) vulnerability in the web UI in Mailman before 2.1.26 allows remote attackers to inject arbitrary web script or HTML via a user-options URL.. EPSS estimates a 4.60% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in the web UI in Mailman before 2.1.26 allows remote attackers to inject arbitrary web script or HTML via a user-options URL.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

4.60%

90.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gnu	Mailman	< 2.1.26
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.4
Redhat	Enterprise Linux Server Eus	7.5
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.4
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Workstation	7.0

References

http://packetstormsecurity.com/files/159761/Mailman-2.1.23-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/104594Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:0504Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0505Third Party Advisory
https://bugs.launchpad.net/mailman/+bug/1747209Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00007.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3563-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4108Third Party Advisory
https://www.mail-archive.com/mailman-users%40python.org/msg70375.html
http://packetstormsecurity.com/files/159761/Mailman-2.1.23-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/104594Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:0504Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0505Third Party Advisory
https://bugs.launchpad.net/mailman/+bug/1747209Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00007.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3563-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4108Third Party Advisory
https://www.mail-archive.com/mailman-users%40python.org/msg70375.html

Timeline

Published: Jan 23, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-5950?

Cross-site scripting (XSS) vulnerability in the web UI in Mailman before 2.1.26 allows remote attackers to inject arbitrary web script or HTML via a user-options URL.

How severe is CVE-2018-5950?

CVE-2018-5950 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 4.60% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5950?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-5950?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST