CVE-2023-1776 HIGH

CVE-2023-1776: Stored XSS via SVG attachment on Boards

Vendor Mattermost
Product Mattermost
Weakness CWE-79 · XSS
Published March 31, 2023
Last update December 6, 2024
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 31, 2023 CVE published
December 6, 2024 Record updated

Related vulnerabilities

04Related CVE

CVE-2026-42599 Cross-site scripting via spread attributes in Svelte SSR CVE-2025-12457 Enable SVG, WebP, and ICO Upload <= 1.1.2 - Authenticated (Author+) Stored Cross-Site Scripting via SVG File Uploads CVE-2026-23738 The Asterisk embedded web server 's /httpstatus page echos user supplied values(cookie and query string) without sanitization CVE-2025-23550 WordPress Product Puller plugin <= 1.5.1 - Reflected Cross Site Scripting (XSS) vulnerability CVE-2023-7166 Novel-Plus HTTP POST Request updateUserInfo cross site scripting