CVE-2021-37860

low

Published 2021-09-23 · Modified 2026-03-03

CVSS v3

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

CVSS v2

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VIR risk

2.5

Description

Cross-site Scripting in Mattermost in github.com/mattermost/mattermost-server

Predictions

Exploit likelihood

30%

Patch ETA

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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.

OS impact

OS	Version	Status	Fixed in
arch		fixed	`5.39.0-1`

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/mattermost/mattermost-server/v5	`<5.39.0`	`5.39.0`
Go	github.com/mattermost/mattermost-server

References

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