Vulnerability · Published Aug 11, 2025 · Assigned by Mattermost
CVE-2025-49221Unauthenticated Access to Channel Subscription in Mattermost Confluence Plugin
Low 3.7
In plain English
A low-severity missing authorization in Mattermost Confluence Plugin from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.3%top 80.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to access subscription details without via API call to GET subscription endpoint.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-plugin-confluence | 1.5.0 | GHSA-rfg4-2m63-fw2q |
| Go | github.com/mattermost/mattermost-plugin-confluence | 1.5.0 | GO-2025-3862 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Confluence Plugin | 0 – before 1.5.0 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N