This update for mailman fixes the following issues :

Fixed a XSS vulnerability and information leak in user options CGI, which could be used to execute arbitrary scripts in the user's browser via specially encoded URLs (bsc#1077358 CVE-2018-5950)

Fixed a directory traversal vulnerability in MTA transports when using the recommended Mailman Transport for Exim (bsc#925502 CVE-2015-2775)

Fixed a XSS vulnerability, which allowed malicious listowners to inject scripts into the listinfo pages (bsc#1099510 CVE-2018-0618)

Fixed arbitrary text injection vulnerability in several mailman CGIs (CVE-2018-13796 bsc#1101288)

Fixed a CSRF vulnerability on the user options page (CVE-2016-6893 bsc#995352)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

New version 2.1.26 (#1370156, #1304360)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Cross-site scripting (XSS) vulnerability in web UI

A cross-site scripting (XSS) flaw was found in mailman. An attacker, able to trick the user into visiting a specific URL, can execute arbitrary web scripts on the user's side and force the victim to perform unintended actions. (CVE-2018-5950)

CSRF protection missing in the user options page

Cross-site request forgery (CSRF) vulnerability in the user options page in GNU Mailman 2.1.x before 2.1.23 allows remote attackers to hijack the authentication of arbitrary users for requests that modify an option, as demonstrated by gaining access to the credentials of a victim's account. (CVE-2016-6893)

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:4913 advisory.

    Mailman is a program used to help manage e-mail discussion lists.

    Security Fix(es):

    * mailman: CSRF token bypass allows to perform CSRF attacks and account takeover (CVE-2021-42097)

    * mailman: CSRF token bypass allows to perform CSRF attacks and admin takeover (CVE-2021-44227)

    * mailman: CSRF protection missing in the user options page (CVE-2016-6893)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3118-1 advisory.

    It was discovered that the Mailman administrative web interface did not protect against cross-site request     forgery (CSRF) attacks. If an authenticated user were tricked into visiting a malicious website while     logged into Mailman, a remote attacker could perform administrative actions. This issue only affected     Ubuntu 12.04 LTS. (CVE-2016-7123)

    Nishant Agarwala discovered that the Mailman user options page did not protect against cross-site request     forgery (CSRF) attacks. If an authenticated user were tricked into visiting a malicious website while     logged into Mailman, a remote attacker could modify user options. (CVE-2016-6893)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Cross-site request forgery (CSRF) vulnerability in the user options page in GNU Mailman 2.1.x before     2.1.23 allows remote attackers to hijack the authentication of arbitrary users for requests that modify an     option, as demonstrated by gaining access to the credentials of a victim's account. (CVE-2016-6893)

Note that Nessus relies on the presence of the package as reported by the vendor.

It was discovered that there was a CSRF vulnerability in mailman, a web-based mailing list manager, which could allow an attacker to obtain a user's password.

For Debian 7 'Wheezy', this issue has been fixed in mailman version 1:2.1.15-1+deb7u2.

We recommend that you upgrade your mailman packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that there was a CSRF vulnerability in mailman, a web-based mailing list manager, which could allow an attacker to obtain a user's password.

ID	Name	Product	Family	Published	Updated	Severity
121005	SUSE SLES11 Security Update : mailman (SUSE-SU-2019:13924-1)	Nessus	SuSE Local Security Checks	1/8/2019	6/27/2024	high
120397	Fedora 28 : 3:mailman (2018-4a699532d3)	Nessus	Fedora Local Security Checks	1/3/2019	7/5/2024	high
108848	Amazon Linux AMI : mailman (ALAS-2018-985)	Nessus	Amazon Linux Local Security Checks	4/6/2018	11/20/2024	high
155833	RHEL 7 : mailman (RHSA-2021:4913)	Nessus	Red Hat Local Security Checks	12/3/2021	11/7/2024	high
94467	Ubuntu 14.04 LTS / 16.04 LTS : Mailman vulnerabilities (USN-3118-1)	Nessus	Ubuntu Local Security Checks	11/2/2016	9/3/2025	high
219953	Linux Distros Unpatched Vulnerability : CVE-2016-6893	Nessus	Misc.	3/4/2025	9/29/2025	high
93320	Debian DLA-608-1 : mailman security update	Nessus	Debian Local Security Checks	9/6/2016	1/27/2026	high
93547	Debian DSA-3668-1 : mailman - security update	Nessus	Debian Local Security Checks	9/16/2016	1/23/2026	high

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