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CVE-2025-53514

Good to know:

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Date: August 11, 2025

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.

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2025-53514
https://github.com/mattermost/mattermost-plugin-confluence
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-w92j-c6gr-hj8r
https://www.mend.io/vulnerability-database/CVE-2025-53514

Severity Score

Weakness Type (CWE)

Improper Check for Unusual or Exceptional Conditions

CWE-754

Top Fix

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Upgrade Version

Upgrade to version github.com/mattermost/mattermost-plugin-confluence - v1.5.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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