CVE-2025-14273
High
Description
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 with the Jira plugin enabled and Mattermost Jira plugin versions <=4.4.0 fail to enforce authentication and issue-key path restrictions in the Jira plugin, which allows an unauthenticated attacker who knows a valid user ID to issue authenticated GET and POST requests to the Jira server via crafted plugin payloads that spoof the user ID and inject arbitrary issue key paths. Mattermost Advisory ID: MMSA-2025-00555
SeverityHigh
CVSS7.2
Exploit probability18. percentile0.3%
Product
Mattermost Server
PublishedDec 22, 2025
First seenDec 22, 2025
Weakness typeCWE-303CWE-303
How to fix
Update
- mattermost mattermost_server10.11.8, 10.12.4, 11.0.6, 11.1.1 or later
- github.com/mattermost/mattermost/server/v88.0.0-20251121122154-b57c297c6d7a or later
- github.com/mattermost/mattermost-plugin-jira4.4.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mattermost mattermost_server | 10.11.0 ≤ v < 10.11.8, 10.12.0 ≤ v < 10.12.4, 11.0.0 ≤ v < 11.0.6, 11.1.0 ≤ v < 11.1.1 | 10.11.8, 10.12.4, 11.0.6, 11.1.1 |
| github.com/mattermost/mattermost/server/v8Go | v < 8.0.0-20251121122154-b57c297c6d7a | 8.0.0-20251121122154-b57c297c6d7a |
| github.com/mattermost/mattermost-plugin-jiraGo | v < 4.4.1, No range specified | 4.4.1 |
| github.com/mattermost/mattermost-serverGo | No range specified | — |
| github.com/mattermost/mattermost-server/v5Go | No range specified | — |
| github.com/mattermost/mattermost-server/v6Go | No range specified | — |
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