CVE-2023-1776CWE-79

Stored XSS via SVG attachment on Boards

High · published March 31, 2023

CVSS v3.1
7.3
EPSS
0%
Percentile
37.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00447 · 37.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2023-03-31T11:29Z
EPSS history
Timeline
  • 31 MAR 11:29Z
    Stored XSS via SVG attachment on Boards
    cvelistv5