CVE-2023-1775GHSA-8JHH-3JF2-PFWRBIT-MATTERMOST-2023-1775
Unsanitized events sent over Websocket to regular users in a High Availability environment
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 7.8.0, 7.1.6, 7.7.2
- 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
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Mattermost Mattermost
From 3.3.0 · through 7.7.1; From 3.3.0 · through 7.1.5; From 3.3.0 · fixed in 7.8.0
- github.com/mattermost/mattermost-serverGo
From 3.3.0 · fixed in 7.1.6
- github.com/mattermost/mattermost-serverGo
From 7.7.0 · fixed in 7.7.2
- github.com/mattermost/mattermost-serverGo
From 7.1.0 · fixed in 7.1.6
- github.com/mattermost/mattermost-server/v5Go
From 5.0.0 · fixed in 7.1.6
- github.com/mattermost/mattermost-server/v6Go
From 6.0.0 · fixed in 7.1.6