Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Mattermost Plugins versions <=1.1.5 fail to sanitize filenames received from federated peers before using them to construct export destination paths, which allows an administrator of a remote federated Mattermost server to write files to arbitrary locations within the target server's filestore via a malicious filename delivered through the shared-channel attachment sync protocol. Mattermost Advisory ID: MMSA-2026-00659
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
🔴 Mattermost Plugins, Path Traversal, #CVE-2026-6957 (High) -DC-Jun2026-115 https://dailycve.com/mattermost-plugins-path-traversal-cve-2026-6957-high-dc-jun2026-115/
Post summary
The tweet announces a new high‑severity path traversal vulnerability in Mattermost Plugins (CVE‑2026‑6957), providing basic technical details but no PoC, exploit, or patch information.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | mattermost | legal_hold | - | mattermost | - |