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osvGoogleOSV:GHSA-JCGV-3PFQ-J4HR
HistoryNov 27, 2023 - 12:30 p.m.

Mattermost Injection vulnerability

2023-11-2712:30:54
Google
osv.dev
4
mattermost
injection
vulnerability
channel name
autocomplete
webapp
html
xss
software

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

14.0%

Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim’s page by create a channel name that is valid HTML. No XSS is possible though.

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

14.0%

Related for OSV:GHSA-JCGV-3PFQ-J4HR