CVE-2023-1776

Stored XSS via SVG attachment on Boards

Published Mar 31, 2023 CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Description
Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.


Remediation

Vendor Solution

Update Mattermost to version v7.8.0, v7.1.6, v7.7.2, or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-0891 Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.
Github GHSA Github GHSA GHSA-63f2-6959-2pxj Mattermost vulnerable to cross-site scripting (XSS)
References
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Dec 6, 2024, 11:05 PM
Reserved
Mar 31, 2023, 11:29 AM
Status
Modified
Published
Mar 31, 2023, 12:15 PM
Modified
Jun 17, 2026, 5:28 AM