CVE-2023-50333 json
Lack of restriction to manage group names for freshly demoted guests
published 2024-01-02 2 y ago modified 2026-09-10 1 mo ago also BIT-mattermost-2023-50333 , EUVD-2024-0319 , GHSA-9w97-9rqx-8v4j , GO-2024-2444
- cvss
- 3.7
- 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 25%
- public exploits
- 0
- none known
Summary
Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names.
Patch / fix
- go github.com/mattermost/mattermost/server/v8 8.1.7
- bitnami mattermost 8.1.7
- Mattermost Mattermost 8.1.7
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L |
| GitHub | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | <8.1.7 all versions |
8.1.7 |
| bitnami | mattermost | <8.1.7 |
8.1.7 |
| go | github.com/mattermost/mattermost-server | all versions |
no fix listed |
| go | github.com/mattermost/mattermost-server/v5 | all versions |
no fix listed |
| go | github.com/mattermost/mattermost-server/v6 | all versions |
no fix listed |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/mattermost/mattermost/commit/61dd452fb2fcd3ac6f7b2e050f7f0a93a92d95fc
web
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-50333
advisory, web
-
github.com
/mattermost/mattermost
package
-
github.com
/advisories/GHSA-9w97-9rqx-8v4j
advisory
Sources
- CVE List CVE-2023-50333
- GitHub Advisory GHSA-9w97-9rqx-8v4j
- NVD CVE-2023-50333
- OSV BIT-mattermost-2023-50333
- OSV GO-2024-2444
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