CVE-2023-3581 json
WebSockets accept connections from HTTPS origin
published 2023-07-17 3 y ago modified 2026-06-17 4 mo ago also BIT-mattermost-2023-3581 , EUVD-2023-44231
- cvss
- 6.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 18%
- public exploits
- 0
- none known
Summary
Mattermost fails to properly validate the origin of a websocket connection allowing a MITM attacker on Mattermost to access the websocket APIs.
Patch / fix
- bitnami mattermost 7.8.7, 7.9.5, 7.10.3
- Mattermost Mattermost 7.8.7, 7.9.5, 7.10.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.2 | CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mattermost | >=7.8.0, <7.8.7 >=7.9.0, <7.9.5 >=7.10.0, <7.10.3 |
7.8.7 7.9.5 7.10.3 |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-346 Origin Validation Error
References
-
mattermost.com
/security-updates
vendor-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-3581
web
Sources
- CVE List CVE-2023-3581
- NVD CVE-2023-3581
- OSV BIT-mattermost-2023-3581
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