CVE-2023-5331 json
File Information Leak via IDOR in file_id in Draft Posts
published 2023-10-09 3 y ago modified 2026-06-17 4 mo ago also BIT-mattermost-2023-5331 , EUVD-2023-57648
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
Mattermost fails to properly check the creator of an attached file when adding the file to a draft post, potentially exposing unauthorized file information.
Patch / fix
- bitnami mattermost 7.8.11, 8.0.3, 8.1.2
- Mattermost Mattermost 7.8.11, 8.0.3, 8.1.2
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mattermost | <7.8.11 >=8.0.0, <8.0.3 >=8.1.0, <8.1.2 |
7.8.11 8.0.3 8.1.2 |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
mattermost.com
/security-updates
vendor-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-5331
web
Sources
- CVE List CVE-2023-5331
- NVD CVE-2023-5331
- OSV BIT-mattermost-2023-5331
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