Vulnerability · Published Aug 11, 2023 · Assigned by Mattermost
CVE-2023-4105Attachment of deleted message in a thread remains accessible and downloadable
Low 3.1
In plain English
A low-severity missing authorization in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.4%top 65.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mattermost fails to delete the attachments when deleting a message in a thread allowing a simple user to still be able to access and download the attachment of a deleted message
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server/v6 | 7.9.6 | GHSA-g3v6-r8p9-wxg9 |
| Go | github.com/mattermost/mattermost-server/v6 | 7.10.4 | GHSA-g3v6-r8p9-wxg9 |
| Go | github.com/mattermost/mattermost-server/v6 | 7.8.8 | GHSA-g3v6-r8p9-wxg9 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 0 – through 7.8.70 – through 7.9.50 – through 7.10.3 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N