Authentication Bypass in Mattermost Confluence Plugin
CVE-2025-49221

3.7LOW

Key Information:

Vendor

Mattermost
Status
Mattermost Confluence Plugin
Vendor
CVE Published:
11 August 2025

What is CVE-2025-49221?

The Mattermost Confluence Plugin versions prior to 1.5.0 contain a significant security flaw that enables unauthorized users to bypass authentication. This vulnerability allows unauthenticated attackers to exploit the plugin's API, specifically the subscription endpoint, thereby gaining access to sensitive subscription details without proper credentials. Such an exploit poses serious risks to the integrity and confidentiality of user data within the Mattermost environment.

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Affected Version(s)

Mattermost Confluence Plugin 0 < 1.5.0

Mattermost Confluence Plugin 1.5.0

References

https://mattermost.com/security-updates

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lorenzo Gallegos
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