Import Path Traversal Enables Unauthorized Unsigned Plugin Installation
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 9.11.18+incompatible, 10.5.9+incompatible, 10.8.4+incompatible, 10.9.2+incompatible, 10.9.2, and 4 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
Mattermost versions 10.9.x <= 10.9.1, 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate file paths during plugin import operations which allows restricted admin users to install unauthorized custom plugins via path traversal in the import functionality, bypassing plugin signature enforcement and marketplace restrictions.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Mattermost Mattermost
From 10.9.0 · through 10.9.1; From 10.8.0 · through 10.8.3; From 10.5.0 · through 10.5.8; From 9.11.0 · through 9.11.17
- github.com/mattermost/mattermost-serverGo
From 9.11.0+incompatible · fixed in 9.11.18+incompatible; From 10.5.0+incompatible · fixed in 10.5.9+incompatible; From 10.8.0+incompatible · fixed in 10.8.4+incompatible; From 10.9.0+incompatible · fixed in 10.9.2+incompatible
- github.com/mattermost/mattermost-server/v5Go
All versions
- github.com/mattermost/mattermost-server/v6Go
All versions
- github.com/mattermost/mattermost/server/v8Go
All versions
- github.com/mattermost/mattermost-serverGo
From 10.9.0 · fixed in 10.9.2
- github.com/mattermost/mattermost-serverGo
From 10.8.0 · fixed in 10.8.4
- github.com/mattermost/mattermost-serverGo
From 10.5.0 · fixed in 10.5.9
- github.com/mattermost/mattermost-serverGo
From 9.11.0 · fixed in 9.11.18
- github.com/mattermost/mattermost/server/v8Go
fixed in 8.0.0-20250619095651-9dd0b3943e55
- github.com/mattermost/mattermost-server/v5Go
through 5.11.1
- github.com/mattermost/mattermost-server/v6Go
through 6.7.2