CVE Tools
Sign in

CVE-2025-49221

Unauthenticated Access to Channel Subscription in Mattermost Confluence Plugin

Published: Aug 11, 2025Updated: Sep 24, 2025 Sources: CVE List NVD GHSACWE-862
NVD MITRE
3.7CVSSLOW
EPSS Score
0.2%
Top 86.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-862

Affected Products

Mattermost Confluence PluginMattermost
On-prem
Communications / messaging-chat
github.com/mattermost/mattermost-plugin-confluenceGoOSS Libraries
confluencemattermost
On-prem
Communications / messaging-chat
mattermostcommercialUSCommunications
gopackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://mattermost.com/security-updates
mattermost.com
https://nvd.nist.gov/vuln/detail/CVE-2025-49221
nvd.nist.gov
https://github.com/mattermost/mattermost-plugin-confluence
github.com

Timeline

Published
Aug 11, 2025
Last Updated
Sep 24, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-49221 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows