CVE-2023-35075
Mattermost vulnerability analysis and mitigation

Overview

CVE-2023-35075 is a vulnerability in Mattermost that affects versions up to 7.8.12 and versions 8.0.0 through 8.1.3. The vulnerability stems from the webapp's failure to properly use innerText/textContent when setting channel names during autocomplete operations (NVD).

Technical details

The vulnerability is classified as CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). It has received varying CVSS v3.1 scores: NIST assigned a medium severity score of 5.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N), while Mattermost assigned a low severity score of 3.1 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N) (NVD).

Impact

The vulnerability allows an attacker to inject HTML into a victim's page by creating a channel name containing valid HTML. However, it's specifically noted that XSS (Cross-Site Scripting) exploitation is not possible through this vulnerability (NVD).

Mitigation and workarounds

Users should upgrade to Mattermost version 8.1.4 or later to address this vulnerability. The fix has been implemented in the latest versions of the software (FortiGuard).

Additional resources


SourceThis report was generated using AI

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