CVE-2025-41395 - CVE House
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Status published Medium CVE-2025-41395

Webapp DoS via malicious retrospective post in Playbooks

Vulnerability Description

Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to properly validate the props used by the RetrospectivePost custom post type in the Playbooks plugin, which allows an attacker to create a specially crafted post with maliciously crafted props and cause a denial of service (DoS) of the web app for all users.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • c0rydoras (c0rydoras)

References

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Affected Vendor

Affected Software

Mattermost
Vulnerable Versions:
10.4.0, 10.5.0, 9.11.0, 10.6.0, 10.4.3, 10.5.1, 9.11.11

Timeline

Official Publish: April 24th, 2025
Last Modified: April 24th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-1287

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.