CVE-2017-18871

unknown

Published 2022-05-24 · Modified 2026-03-03

CVSS v3

—

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

CVSS v2

—

VIR risk

—

Description

Mattermost Server vulnerable to Denial of Service through `@` character prefix inserted into JavaScript field names in github.com/mattermost/mattermost-server

Predictions

Exploit likelihood

30%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/mattermost/mattermost-server	`<4.2.2`	`4.2.2`
Go	github.com/mattermost/mattermost-server	`>=4.3.0-rc1,<4.3.4`	`4.3.4`
Go	github.com/mattermost/mattermost-server	`>=4.4.0-rc1,<4.4.5`	`4.4.5`
Go	github.com/mattermost/mattermost-server	`>=4.5.0-rc1,<4.5.0`	`4.5.0`
Go	github.com/mattermost/mattermost-server	`>=4.5.0-rc1+incompatible,<4.5.0+incompatible`	`4.2.2+incompatible`

References

Verify integrity in audit chain (admin only). AS-IS.