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CVE-2025-53514

Unexpected Input to Server Webhook endpoint Causes DoS in Mattermost Confluence Plugin

Published: Aug 11, 2025Updated: Sep 25, 2025 Sources: CVE List NVD GHSA BDUCWE-754
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
0.3%
Top 82.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch 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 server webhook endpoint with an invalid request body.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
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-754

Affected Products

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

Exploitability

Official Patch Available

References

https://osv.dev/vulnerability/GHSA-w92j-c6gr-hj8r&#13;
osv.dev
https://github.com/mattermost/mattermost-plugin-confluence&#13;
github.com
https://vuldb.com/?id.319465
vuldb.com
and 3 more references View all →

Timeline

Published
Aug 11, 2025
Last Updated
Sep 25, 2025

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