CVE-2023-43754

Name: CVE-2023-43754
Creator: NVD / NIST
Published: 2023-11-27T10:15:07.657+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2023-43754 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Mattermost fails to check whether the “Allow users to view archived channels” setting is enabled during permalink previews display, allowing members to view permalink previews of archived channels even if the “Allow users to view archived channels” setting is disabled. . EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

Mattermost fails to check whether the “Allow users to view archived channels” setting is enabled during permalink previews display, allowing members to view permalink previews of archived channels even if the “Allow users to view archived channels” setting is disabled.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.51%

39.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Mattermost	Mattermost	<= 7.8.12
Mattermost	Mattermost	>= 8.0.0, <= 8.1.3
Mattermost	Mattermost	>= 9.0.0, <= 9.0.1
Mattermost	Mattermost	9.1.0

References

https://mattermost.com/security-updatesVendor Advisory
https://mattermost.com/security-updatesVendor Advisory

Timeline

Published: Nov 27, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-43754?

How severe is CVE-2023-43754?

CVE-2023-43754 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2023-43754?

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-2023-43754?

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

Scan your code now

Source: NVD / NIST