CVE-2025-41395 json
Webapp DoS via malicious retrospective post in Playbooks
published last yr. modified last mo. also GHSA-3g36-gf7c-75qw , GO-2025-3642 , EUVD-2025-12104
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to properly validate the props used by the RetrospectivePost custom post type in the Playbooks plugin, which allows an attacker to create a specially crafted post with maliciously crafted props and cause a denial of service (DoS) of the web app for all users.
Patch / fix
- go github.com/mattermost/mattermost-plugin-playbooks 1.41.0
- go github.com/mattermost/mattermost/server/v8 8.0.0-20250218121836-2b5275d87136
- Mattermost Mattermost 9.11.11, 10.4.3, 10.5.1, 10.6.0
- govulncheck-vulndb openSUSE Tumbleweed 0.0.20250424T181457-1.1
opensuse advisories openSUSE-SU-2025:15033-1
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- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-plugin-playbooks | >=2.0.0 <1.41.0 all versions |
1.41.0 |
| go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250218121836-2b5275d87136 >=10.4.0 >=10.5.0 >=9.11.0 all versions |
8.0.0-20250218121836-2b5275d87136 |
| go | github.com/mattermost/mattermost-server | >=9.11.0+incompatible >=10.4.0+incompatible >=10.5.0+incompatible |
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-1287 Improper Validation of Specified Type of Input
References
-
github.com
/mattermost/mattermost-plugin-playbooks/commit/4c823090e281cb9c0d5c17ee2e5db275117540d1
web, patch
-
github.com
/mattermost/mattermost/commit/2b5275d87136f07e016c8eca09a2f004b31afc8a
web
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2025-41395
advisory
-
github.com
/mattermost/mattermost-plugin-playbooks
package
-
github.com
/advisories/GHSA-3g36-gf7c-75qw
advisory
Sources
- CVE List CVE-2025-41395
- GitHub Advisory GHSA-3g36-gf7c-75qw
- NVD CVE-2025-41395
- OSV GO-2025-3642
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.