CVE-2024-1952 json
Mattermost incorrectly allows access individual posts
published 2024-02-29 2 y ago modified 2026-08-07 3 mo ago also BIT-mattermost-2024-1952 , EUVD-2024-0708 , GHSA-r4fm-g65h-cr54 , GO-2024-2635
- cvss
- 3.1
- 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 30%
- public exploits
- 0
- none known
Summary
Mattermost version 8.1.x before 8.1.9 fails to sanitize data associated with permalinks when a plugin updates an ephemeral post, allowing an authenticated attacker who can control the ephemeral post update to access individual posts' contents in channels they are not a member of.
Patch / fix
- go github.com/mattermost/mattermost/server/v8 9.4.0
- bitnami mattermost 8.1.9
- go github.com/mattermost/mattermost-server 9.4.0+incompatible
- Mattermost Mattermost 8.1.9, 9.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 30% 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 |
| GitHub | 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 |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/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, <9.4.0 all versions |
9.4.0 |
| bitnami | mattermost | >=8.1.0, <8.1.9 |
8.1.9 |
| go | github.com/mattermost/mattermost-server | >=9.0.0+incompatible, <9.4.0+incompatible |
9.4.0+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-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-1952
advisory, web
-
github.com
/advisories/GHSA-r4fm-g65h-cr54
advisory
-
github.com
/mattermost/mattermost
package
Sources
- CVE List CVE-2024-1952
- GitHub Advisory GHSA-r4fm-g65h-cr54
- NVD CVE-2024-1952
- OSV BIT-mattermost-2024-1952
- OSV GO-2024-2635
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