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CVE-2016-6893

22
FAUCET Score

CVE-2016-6893 is a Cross-Site Request Forgery (CSRF) vulnerability affecting GNU Mailman 2.1.x versions prior to 2.1.23. This flaw allows remote attackers to hijack user authentication on the options page, potentially leading to unauthorized modification of user settings and compromise of account credentials. With a CVSS score of 8.8 (High), it presents a significant risk due to its network-based attack vector and low attack complexity, enabling high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.1CPE matchmatch criteria
cpe:2.3:a:gnu:mailman:2.1:*:*:*:*:*:*:*
2.1.1CPE matchmatch criteria
cpe:2.3:a:gnu:mailman:2.1.1:*:*:*:*:*:*:*
2.1.2CPE matchmatch criteria
cpe:2.3:a:gnu:mailman:2.1.2:*:*:*:*:*:*:*
2.1.3CPE matchmatch criteria
cpe:2.3:a:gnu:mailman:2.1.3:*:*:*:*:*:*:*
2.1.4CPE matchmatch criteria
cpe:2.3:a:gnu:mailman:2.1.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 73rd percentile among its peer group of 14,855 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: mailman-3:2.1.15-30.el7_9.2
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: mailman
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mailman

Vendor Advisories (1)

redhatCVE-2016-6893Moderate

mailman: CSRF protection missing in the user options page

Aug 19, 2016

References

bugs.launchpad.net / bugs/1614841
Issue Tracking
debian.org / security/2016/dsa-3668
securityfocus.com / bid/92731
securitytracker.com / id/1036728