CVE-2023-35075

Name: CVE-2023-35075
Creator: NVD / NIST
Published: 2023-11-27T10:15:07.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2023-35075 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though. . EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.37%

28.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mattermost	Mattermost	<= 7.8.12
Mattermost	Mattermost	>= 8.0.0, <= 8.1.3

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-2023-35075?

How severe is CVE-2023-35075?

CVE-2023-35075 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2023-35075?

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-2023-35075?

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

Scan your code now

Source: NVD / NIST