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CVE-2025-53910

Unauthorized Channel Subscription Edit in Mattermost Confluence Plugin

Published: Aug 11, 2025Updated: Sep 25, 2025 Sources: CVE List NVD GHSA BDUCWE-862
4.0MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 92.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:CC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-862

Affected Products

Mattermost
commercial·US
Mattermost Confluence PluginOn-prem
Communications / messaging-chat
confluenceOn-prem
Communications / messaging-chat
Mattermost Inc
commercial·USaka mattermost
Mattermost ConfluenceOn-premWeb App
Communications / messaging-chat
Go
package-ecosystem
github.com/mattermost/mattermost-plugin-confluence
OSS Libraries

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://mattermost.com/security-updates
mattermost.com
https://osv.dev/vulnerability/GHSA-v6c8-g53h-mc2h&#13;
osv.dev
https://github.com/mattermost/mattermost-plugin-confluence&#13;
github.com
and 3 more references View all →
News mentions
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