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CVE-2025-54525

Unexpected input to Create Channel Subscription endpoint causes DoS in Mattermost Confluence Plugin

Published: Aug 11, 2025Updated: Sep 24, 2025 Sources: CVE List NVD GHSA BDUCWE-1287
7.5HIGH
NVD MITRE
EPSS Score
0.3%
Top 77.1%
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 handle unexpected request body which allows attackers to crash the plugin via constant hit to create channel subscription endpoint with an invalid request body.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-1287

Affected Products

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

Exploitability

Official Patch Available
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References

https://mattermost.com/security-updates
mattermost.com
https://nvd.nist.gov/vuln/detail/CVE-2025-54525
nvd.nist.gov
https://github.com/mattermost/mattermost-plugin-confluence
github.com
and 3 more references View all →
News mentions
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