CVE-2025-8023 (GCVE-0-2025-8023)

Vulnerability from cvelistv5 – Published: 2025-08-21 07:51 – Updated: 2025-08-21 14:50
VLAI?
Summary
Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.9.x <= 10.9.2 fails to sanitize path traversal sequences in template file destination paths, which allows a system admin to perform path traversal attacks via malicious path components, potentially enabling malicious file placement outside intended directories.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
Mattermost Mattermost Affected: 10.8.0 , ≤ 10.8.3 (semver)
Affected: 10.5.0 , ≤ 10.5.8 (semver)
Affected: 9.11.0 , ≤ 9.11.17 (semver)
Affected: 10.9.0 , ≤ 10.9.2 (semver)
Unaffected: 10.10.0
Unaffected: 10.8.4
Unaffected: 10.5.9
Unaffected: 9.11.18
Unaffected: 10.9.3
Create a notification for this product.
Credits
Dawid Kulikowski (daw10)
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-8023",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-21T14:50:47.920308Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-21T14:50:55.341Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Mattermost",
          "vendor": "Mattermost",
          "versions": [
            {
              "lessThanOrEqual": "10.8.3",
              "status": "affected",
              "version": "10.8.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.5.8",
              "status": "affected",
              "version": "10.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "9.11.17",
              "status": "affected",
              "version": "9.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.9.2",
              "status": "affected",
              "version": "10.9.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "10.10.0"
            },
            {
              "status": "unaffected",
              "version": "10.8.4"
            },
            {
              "status": "unaffected",
              "version": "10.5.9"
            },
            {
              "status": "unaffected",
              "version": "9.11.18"
            },
            {
              "status": "unaffected",
              "version": "10.9.3"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dawid Kulikowski (daw10)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Mattermost versions 10.8.x \u003c= 10.8.3, 10.5.x \u003c= 10.5.8, 9.11.x \u003c= 9.11.17, 10.9.x \u003c= 10.9.2 fails to sanitize path traversal sequences in template file destination paths, which allows a system admin to perform path traversal attacks via malicious path components, potentially enabling malicious file placement outside intended directories."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-21T07:51:37.130Z",
        "orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
        "shortName": "Mattermost"
      },
      "references": [
        {
          "url": "https://mattermost.com/security-updates"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Update Mattermost to versions 10.10.0, 10.8.4, 10.5.9, 9.11.18, 10.9.3 or higher."
        }
      ],
      "source": {
        "advisory": "MMSA-2025-00499",
        "defect": [
          "https://mattermost.atlassian.net/browse/MM-64596"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Path Traversal in Template Upload Allows Uploading Files Outside Target Directory"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
    "assignerShortName": "Mattermost",
    "cveId": "CVE-2025-8023",
    "datePublished": "2025-08-21T07:51:37.130Z",
    "dateReserved": "2025-07-22T08:03:06.489Z",
    "dateUpdated": "2025-08-21T14:50:55.341Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-8023\",\"sourceIdentifier\":\"responsibledisclosure@mattermost.com\",\"published\":\"2025-08-21T08:15:30.720\",\"lastModified\":\"2025-08-25T14:56:33.503\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Mattermost versions 10.8.x \u003c= 10.8.3, 10.5.x \u003c= 10.5.8, 9.11.x \u003c= 9.11.17, 10.9.x \u003c= 10.9.2 fails to sanitize path traversal sequences in template file destination paths, which allows a system admin to perform path traversal attacks via malicious path components, potentially enabling malicious file placement outside intended directories.\"},{\"lang\":\"es\",\"value\":\"Las versiones 10.8.x \u0026lt;= 10.8.3, 10.5.x \u0026lt;= 10.5.8, 9.11.x \u0026lt;= 9.11.17, 10.9.x \u0026lt;= 10.9.2 de Mattermost no pueden depurar las secuencias de path traversal en las rutas de destino de los archivos de plantilla, lo que permite que un administrador del sistema realice ataques de path traversal a trav\u00e9s de componentes de ruta maliciosos, lo que potencialmente permite la ubicaci\u00f3n de archivos maliciosos fuera de los directorios previstos.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"responsibledisclosure@mattermost.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N\",\"baseScore\":6.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.3,\"impactScore\":4.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":4.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.2,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"responsibledisclosure@mattermost.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.11.0\",\"versionEndExcluding\":\"9.11.18\",\"matchCriteriaId\":\"4E2C0E13-B52A-4539-80B6-DC0FE8FF2E56\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.5.0\",\"versionEndExcluding\":\"10.5.9\",\"matchCriteriaId\":\"B95DCAE5-07C2-46B1-B03E-ED3FB9B2C568\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.8.0\",\"versionEndExcluding\":\"10.8.4\",\"matchCriteriaId\":\"BE00156D-6ACB-4F8C-BFFC-03A8127199A4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.9.0\",\"versionEndExcluding\":\"10.9.3\",\"matchCriteriaId\":\"1499D0E1-ACA9-4FEE-915A-857F014E0AB9\"}]}]}],\"references\":[{\"url\":\"https://mattermost.com/security-updates\",\"source\":\"responsibledisclosure@mattermost.com\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-8023\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-08-21T14:50:47.920308Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-08-21T14:50:52.599Z\"}}], \"cna\": {\"title\": \"Path Traversal in Template Upload Allows Uploading Files Outside Target Directory\", \"source\": {\"defect\": [\"https://mattermost.atlassian.net/browse/MM-64596\"], \"advisory\": \"MMSA-2025-00499\", \"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Dawid Kulikowski (daw10)\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 6.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Mattermost\", \"product\": \"Mattermost\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.8.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"10.8.3\"}, {\"status\": \"affected\", \"version\": \"10.5.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"10.5.8\"}, {\"status\": \"affected\", \"version\": \"9.11.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"9.11.17\"}, {\"status\": \"affected\", \"version\": \"10.9.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"10.9.2\"}, {\"status\": \"unaffected\", \"version\": \"10.10.0\"}, {\"status\": \"unaffected\", \"version\": \"10.8.4\"}, {\"status\": \"unaffected\", \"version\": \"10.5.9\"}, {\"status\": \"unaffected\", \"version\": \"9.11.18\"}, {\"status\": \"unaffected\", \"version\": \"10.9.3\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Update Mattermost to versions 10.10.0, 10.8.4, 10.5.9, 9.11.18, 10.9.3 or higher.\"}], \"references\": [{\"url\": \"https://mattermost.com/security-updates\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Mattermost versions 10.8.x \u003c= 10.8.3, 10.5.x \u003c= 10.5.8, 9.11.x \u003c= 9.11.17, 10.9.x \u003c= 10.9.2 fails to sanitize path traversal sequences in template file destination paths, which allows a system admin to perform path traversal attacks via malicious path components, potentially enabling malicious file placement outside intended directories.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-22\", \"description\": \"CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee\", \"shortName\": \"Mattermost\", \"dateUpdated\": \"2025-08-21T07:51:37.130Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-8023\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-08-21T14:50:55.341Z\", \"dateReserved\": \"2025-07-22T08:03:06.489Z\", \"assignerOrgId\": \"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee\", \"datePublished\": \"2025-08-21T07:51:37.130Z\", \"assignerShortName\": \"Mattermost\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.