CVE-2024-23488 json
Files of archived channels accessible with the “Allow users to view archived channels” option disabled
published 2024-02-29 2 y ago modified 2026-09-10 1 mo ago also GHSA-xgxj-j98c-59rv , GO-2024-2595 , EUVD-2024-0766
- cvss
- 3.1
- 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 24%
- public exploits
- 0
- none known
Summary
Mattermost fails to properly restrict the access of files attached to posts in an archived channel, resulting in members being able to access files of archived channels even if the “Allow users to view archived channels” option is disabled.
Patch / fix
- go github.com/mattermost/mattermost/server/v8 8.1.9, 9.4.2
- go github.com/mattermost/mattermost-server 9.4.2+incompatible
- Mattermost Mattermost 8.1.9, 9.4.2, 9.5.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | >=9.0.0, <9.4.2 <8.1.9 all versions |
9.4.2 8.1.9 |
| go | github.com/mattermost/mattermost-server | >=9.0.0+incompatible, <9.4.2+incompatible |
9.4.2+incompatible |
| 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
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-23488
advisory
-
github.com
/mattermost/mattermost
package
-
github.com
/advisories/GHSA-xgxj-j98c-59rv
advisory
Sources
- CVE List CVE-2024-23488
- GitHub Advisory GHSA-xgxj-j98c-59rv
- NVD CVE-2024-23488
- OSV GO-2024-2595
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