CVE-2025-4981

unknown

Published 2025-06-20 · Modified 2026-03-03

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

—

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

—

Description

Mattermost allows authenticated users to write files to arbitrary locations in github.com/mattermost/mattermost-server

Predictions

Exploit likelihood

30%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/mattermost/mattermost-server	`<0.0.0-20250519205859-65aec10162f6`	`0.0.0-20250519205859-65aec10162f6`
Go	github.com/mattermost/mattermost/server/v8	`<8.0.0-20250519205859-65aec10162f6`	`8.0.0-20250519205859-65aec10162f6`
Go	github.com/mattermost/mattermost/server/v8	`>=10.5.0,<10.5.6`	`10.5.6`
Go	github.com/mattermost/mattermost/server/v8	`>=9.11.0,<9.11.16`	`9.11.16`
Go	github.com/mattermost/mattermost/server/v8	`>=10.8.0,<10.8.1`	`10.8.1`
Go	github.com/mattermost/mattermost/server/v8	`>=10.7.0,<10.7.3`	`10.7.3`
Go	github.com/mattermost/mattermost/server/v8	`>=10.6.0,<10.6.6`	`10.6.6`
Go	github.com/mattermost/mattermost-server	`>=10.8.0+incompatible,<10.8.1+incompatible`	`0.0.0-20250519205859-65aec10162f6`
Go	github.com/mattermost/mattermost-server/v5
Go	github.com/mattermost/mattermost-server/v6

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

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