CVE-2023-1776

Stored XSS via SVG attachment on Boards

State: Published
Severity: 7.3 High
Published: Mar 31, 2023
Updated: Dec 6, 2024
Reserved: Mar 31, 2023

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.

Scores

CVSS	Score	Vector	Source
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N	Mattermost

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
MattermostMattermost	3.3.0 through 7.7.1Affected 3.3.0 through 7.1.5Affected 3.3.0 to before 7.8.0Affected 7.8.0Not affected 7.7.2Not affected 7.1.6Not affected

References

https://mattermost.com/security-updates/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.