Vulnerability-Lookup

FKIE_CVE-2025-20033

Vulnerability from fkie_nvd - Published: 2025-01-09 07:15 - Updated: 2026-06-17 08:40

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

Mattermost versions 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate post types, which allows attackers to deny service to users with the sysconsole_read_plugins permission via creating a post with the custom_pl_notification type and specific props.

References

	URL	Tags
	responsibledisclosure@mattermost.com	https://mattermost.com/security-updates	Vendor Advisory

Impacted products

Vendor	Product	Version
mattermost	mattermost_server	*
mattermost	mattermost_server	*
mattermost	mattermost_server	*
mattermost	mattermost_server	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Mattermost",
          "vendor": "Mattermost",
          "versions": [
            {
              "status": "affected",
              "version": "10.2.0"
            },
            {
              "lessThanOrEqual": "9.11.5",
              "status": "affected",
              "version": "9.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.0.3",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.1.3",
              "status": "affected",
              "version": "10.1.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "10.3.0"
            },
            {
              "status": "unaffected",
              "version": "10.2.1"
            },
            {
              "status": "unaffected",
              "version": "9.11.6"
            },
            {
              "status": "unaffected",
              "version": "10.0.4"
            },
            {
              "status": "unaffected",
              "version": "10.1.4"
            }
          ]
        }
      ],
      "source": "responsibledisclosure@mattermost.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "61B308B7-C55B-4250-BAA0-BF949DF9EA63",
              "versionEndExcluding": "9.11.6",
              "versionStartIncluding": "9.11.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6470CB79-F54D-4FC3-ACF4-E38A5CD15782",
              "versionEndExcluding": "10.0.4",
              "versionStartIncluding": "10.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C9D87A5B-2D40-446B-B9FB-4376B846432F",
              "versionEndExcluding": "10.1.4",
              "versionStartIncluding": "10.1.0",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "016D60D9-3254-437F-9A14-F5A82723D999",
              "versionEndExcluding": "10.2.1",
              "versionStartIncluding": "10.2.0",
              "vulnerable": true
            }
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          "operator": "OR"
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost versions 10.2.0, 9.11.x \u003c= 9.11.5, 10.0.x \u003c= 10.0.3, 10.1.x \u003c= 10.1.3 fail to properly validate post types, which allows attackers to deny service to users with the sysconsole_read_plugins permission via creating a post with the custom_pl_notification type and specific props."
    },
    {
      "lang": "es",
      "value": "Las versiones de Mattermost 10.2.0, 9.11.x \u0026lt;= 9.11.5, 10.0.x \u0026lt;= 10.0.3, 10.1.x \u0026lt;= 10.1.3 no logran validar correctamente los tipos de publicaciones, lo que permite a los atacantes denegar el servicio a los usuarios con el permiso sysconsole_read_plugins mediante la creaci\u00f3n de una publicaci\u00f3n con el tipo custom_pl_notification y propiedades espec\u00edficas."
    }
  ],
  "id": "CVE-2025-20033",
  "lastModified": "2026-06-17T08:40:33.570",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
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        "impactScore": 1.4,
        "source": "responsibledisclosure@mattermost.com",
        "type": "Secondary"
      },
      {
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-20033",
          "options": [
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              "exploitation": "none"
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            {
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            },
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            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-01-09T15:05:02.977878Z",
          "version": "2.0.3"
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  "published": "2025-01-09T07:15:28.450",
  "references": [
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      "source": "responsibledisclosure@mattermost.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "sourceIdentifier": "responsibledisclosure@mattermost.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
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        {
          "lang": "en",
          "value": "CWE-1287"
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      ],
      "source": "responsibledisclosure@mattermost.com",
      "type": "Secondary"
    }
  ]
}

CVE-2025-20033 (GCVE-0-2025-20033)

Vulnerability from cvelistv5 – Published: 2025-01-09 06:55 – Updated: 2025-01-09 15:05

Title

DoS via custom post type for sysconsole plugin readers

Summary

Severity

4.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-09 15:05 UTC

CWE

CWE-1287 - Improper Validation of Specified Type of Input

Assigner

Mattermost mitre root

References

1 reference

URL	Tags
https://mattermost.com/security-updates

Impacted products

1 product

Vendor	Product	Version
Mattermost	Mattermost	Affected: 10.2.0 Affected: 9.11.0 , ≤ 9.11.5 (semver) Affected: 10.0.0 , ≤ 10.0.3 (semver) Affected: 10.1.0 , ≤ 10.1.3 (semver) Unaffected: 10.3.0 Unaffected: 10.2.1 Unaffected: 9.11.6 Unaffected: 10.0.4 Unaffected: 10.1.4

Credits

c0rydoras (c0rydoras)

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2025-20033",
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                  },
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                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-09T15:05:02.977878Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.