CVE-2025-41395: Github.com/mattermost/mattermost plugin playbooks Mattermost Playbooks Fails To Properly Vulnerability

MODERATE
Advisory Identifier: GHSA-3g36-gf7c-75qw
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CVSS 6.5
CWE-1287
Published
Advisory Summary

CVE-2025-41395 is a MODERATE (CVSS 6.5) mattermost playbooks fails to properly vulnerability (CWE-1287: Improper Validation of Specified Type of Input) affecting Github.com/mattermost/mattermost plugin playbooks libraries in the Go ecosystem. The issue involves mattermost playbooks fails to properly validate the props used by the retrospectivepost custom post type. Remediation is available by upgrading affected packages to version 8.0.0-20250218121836-2b5275d87136, 1.41.0.

CVE-2025-41395 at a Glance

CVE Identifier CVE-2025-41395
GHSA Identifier GHSA-3g36-gf7c-75qw
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-1287: Improper Validation of Specified Type of Input
Affected Product Github.com/mattermost/mattermost plugin playbooks
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2025-41395

To remediate this vulnerability, upgrade all affected Github.com/mattermost/mattermost plugin playbooks dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/mattermost/mattermost-plugin-playbooks fixed: Latest secure release 
Upgrade github.com/mattermost/mattermost-plugin-playbooks to Latest secure release
github.com/mattermost/mattermost/server/v8 fixed: 8.0.0-20250218121836-2b5275d87136 
Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20250218121836-2b5275d87136
github.com/mattermost/mattermost/server/v8 fixed: Latest secure release 
Upgrade github.com/mattermost/mattermost/server/v8 to Latest secure release
github.com/mattermost/mattermost/server/v8 fixed: Latest secure release 
Upgrade github.com/mattermost/mattermost/server/v8 to Latest secure release
github.com/mattermost/mattermost/server/v8 fixed: Latest secure release 
Upgrade github.com/mattermost/mattermost/server/v8 to Latest secure release
github.com/mattermost/mattermost-plugin-playbooks fixed: 1.41.0 
Upgrade github.com/mattermost/mattermost-plugin-playbooks to 1.41.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/mattermost/mattermost-plugin-playbooks

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-41395, inspect your project dependencies for Github.com/mattermost/mattermost plugin playbooks:

inspect dependencies for github.com/mattermost/mattermost-plugin-playbooks

Analyze the terminal output to locate any version of Github.com/mattermost/mattermost plugin playbooks in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.0.0-20250218121836-2b5275d87136), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1287: Improper Validation of Specified Type of Input, where the product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type. In Github.com/mattermost/mattermost plugin playbooks, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2025-41395 Affected Github.com/mattermost/mattermost plugin playbooks Versions

6 component(s)
Fixed Versions:
8.0.0-20250218121836-2b5275d871361.41.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/mattermost/mattermost-plugin-playbooks
golang/github.com/mattermost/mattermost-plugin-playbooks
Go
≥ 2.0.0
github.com/mattermost/mattermost/server/v8
golang/github.com/mattermost/mattermost/server/v8
Go
< 8.0.0-20250218121836-2b5275d87136
8.0.0-20250218121836-2b5275d87136
github.com/mattermost/mattermost/server/v8
golang/github.com/mattermost/mattermost/server/v8
Go
≥ 10.4.0
github.com/mattermost/mattermost/server/v8
golang/github.com/mattermost/mattermost/server/v8
Go
≥ 10.5.0
github.com/mattermost/mattermost/server/v8
golang/github.com/mattermost/mattermost/server/v8
Go
≥ 9.11.0
github.com/mattermost/mattermost-plugin-playbooks
golang/github.com/mattermost/mattermost-plugin-playbooks
Go
< 1.41.0
1.41.0

References

NVD — CVE-2025-41395 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-41395
Security Fix Commit FIX COMMIT
https://github.com/mattermost/mattermost-plugin-playbooks/commit/4c823090e281cb9c0d5c17ee2e5db275117540d1
Security Fix Commit FIX COMMIT
https://github.com/mattermost/mattermost/commit/2b5275d87136f07e016c8eca09a2f004b31afc8a
Github.com/mattermost/mattermost plugin playbooks Source Repository REPOSITORY
https://github.com/mattermost/mattermost-plugin-playbooks
Github.com/mattermost/mattermost plugin playbooks Security Information SECURITY
https://mattermost.com/security-updates

Frequently Asked Questions

What is CVE-2025-41395?
CVE-2025-41395 is a security vulnerability in Github.com/mattermost/mattermost plugin playbooks involving Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type under CWE-1287: Improper Validation of Specified Type of Input.
Which Github.com/mattermost/mattermost plugin playbooks versions are affected?
Affected versions include releases prior to 8.0.0-20250218121836-2b5275d87136, 1.41.0 across affected packages: github.com/mattermost/mattermost-plugin-playbooks, github.com/mattermost/mattermost/server/v8.
What version fixes CVE-2025-41395?
Upgrading to 8.0.0-20250218121836-2b5275d87136, 1.41.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/mattermost/mattermost-plugin-playbooks affected?
Yes, github.com/mattermost/mattermost-plugin-playbooks is affected in releases prior to Latest secure release, 1.41.0. Upgrade your dependency to Latest secure release, 1.41.0 or later.
Is github.com/mattermost/mattermost/server/v8 affected?
Yes, github.com/mattermost/mattermost/server/v8 is affected in releases prior to 8.0.0-20250218121836-2b5275d87136, Latest secure release. Upgrade your dependency to 8.0.0-20250218121836-2b5275d87136, Latest secure release or later.
What is the CVSS score of CVE-2025-41395?
CVE-2025-41395 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2025-41395?
CVE-2025-41395 is classified under CWE-1287: Improper Validation of Specified Type of Input (The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.).
How can I check Go dependencies for CVE-2025-41395?
Run the dependency tree command: 'inspect dependencies for github.com/mattermost/mattermost-plugin-playbooks'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-3g36-gf7c-75qw",
  "modified" : "2025-04-24T16:09:27Z",
  "published" : "2025-04-24T09:30:33Z",
  "aliases" : [ "CVE-2025-41395" ],
  "summary" : "Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost-plugin-playbooks"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 2.1.1"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost/server/v8"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.0.0-20250218121836-2b5275d87136"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost/server/v8"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.4.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 10.4.3"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost/server/v8"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.5.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 10.5.1"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost/server/v8"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.11.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 9.11.11"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost-plugin-playbooks"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.41.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-41395"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mattermost/mattermost-plugin-playbooks/commit/4c823090e281cb9c0d5c17ee2e5db275117540d1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mattermost/mattermost/commit/2b5275d87136f07e016c8eca09a2f004b31afc8a"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mattermost/mattermost-plugin-playbooks"
  }, {
    "type" : "WEB",
    "url" : "https://mattermost.com/security-updates"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1287" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-24T16:09:27Z",
    "nvd_published_at" : "2025-04-24T07:15:31Z"
  }
}