GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2025-11794 (GCVE-0-2025-11794)

Vulnerability from cvelistv5 – Published: 2025-11-14 10:45 – Updated: 2025-12-01 15:36
VLAI
Title
Password hash and MFA secret returned in user email verification endpoint
Summary
Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/{user_id}/email/verify/member endpoint
Severity
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-14 13:27 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version CPE status
Mattermost Mattermost Affected: 10.11.0 , ≤ 10.11.3 (semver)
Affected: 10.5.0 , ≤ 10.5.11 (semver)
Affected: 10.12.0 , ≤ 10.12.0 (semver)
Unaffected: 11.0.0
Unaffected: 10.11.4
Unaffected: 10.5.12
Unaffected: 10.12.1
guessed Create a notification for this product.
Credits
Christian Iwata Nilsson
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-11794",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-14T13:27:27.714952Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-01T15:36:58.365Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Mattermost",
          "vendor": "Mattermost",
          "versions": [
            {
              "lessThanOrEqual": "10.11.3",
              "status": "affected",
              "version": "10.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.5.11",
              "status": "affected",
              "version": "10.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.12.0",
              "status": "affected",
              "version": "10.12.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "11.0.0"
            },
            {
              "status": "unaffected",
              "version": "10.11.4"
            },
            {
              "status": "unaffected",
              "version": "10.5.12"
            },
            {
              "status": "unaffected",
              "version": "10.12.1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Christian Iwata Nilsson"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Mattermost versions 10.11.x \u003c= 10.11.3, 10.5.x \u003c= 10.5.11, 10.12.x \u003c= 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/{user_id}/email/verify/member endpoint"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-14T10:45:39.244Z",
        "orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
        "shortName": "Mattermost"
      },
      "references": [
        {
          "url": "https://mattermost.com/security-updates"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Update Mattermost to versions 11.0.0, 10.11.4, 10.5.12, 10.12.1 or higher."
        }
      ],
      "source": {
        "advisory": "MMSA-2025-00541",
        "defect": [
          "https://mattermost.atlassian.net/browse/MM-65742"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Password hash and MFA secret returned in user email verification endpoint"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
    "assignerShortName": "Mattermost",
    "cveId": "CVE-2025-11794",
    "datePublished": "2025-11-14T10:45:39.244Z",
    "dateReserved": "2025-10-15T13:45:32.170Z",
    "dateUpdated": "2025-12-01T15:36:58.365Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-11794",
      "date": "2026-09-17",
      "epss": "0.00279",
      "percentile": "0.20463"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-11794\",\"sourceIdentifier\":\"responsibledisclosure@mattermost.com\",\"published\":\"2025-11-14T11:15:45.003\",\"lastModified\":\"2026-06-17T08:31:11.363\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Mattermost versions 10.11.x \u003c= 10.11.3, 10.5.x \u003c= 10.5.11, 10.12.x \u003c= 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/{user_id}/email/verify/member endpoint\"}],\"affected\":[{\"source\":\"responsibledisclosure@mattermost.com\",\"affectedData\":[{\"vendor\":\"Mattermost\",\"product\":\"Mattermost\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"10.11.0\",\"lessThanOrEqual\":\"10.11.3\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"10.5.0\",\"lessThanOrEqual\":\"10.5.11\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"10.12.0\",\"lessThanOrEqual\":\"10.12.0\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"11.0.0\",\"status\":\"unaffected\"},{\"version\":\"10.11.4\",\"status\":\"unaffected\"},{\"version\":\"10.5.12\",\"status\":\"unaffected\"},{\"version\":\"10.12.1\",\"status\":\"unaffected\"}]}]}],\"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:U/C:H/I:N/A:N\",\"baseScore\":4.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.2,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-11-14T13:27:27.714952Z\",\"id\":\"CVE-2025-11794\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"responsibledisclosure@mattermost.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.5.0\",\"versionEndExcluding\":\"10.5.12\",\"matchCriteriaId\":\"CCE1652A-13F7-4934-9F90-28129BAEE240\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.11.0\",\"versionEndExcluding\":\"10.11.4\",\"matchCriteriaId\":\"2A1F41DC-D93D-48A7-8A3B-623C3344E979\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.12.0\",\"versionEndExcluding\":\"10.12.1\",\"matchCriteriaId\":\"E21DF5C5-280A-48C5-96C7-C78F0ECF32A3\"}]}]}],\"references\":[{\"url\":\"https://mattermost.com/security-updates\",\"source\":\"responsibledisclosure@mattermost.com\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2025-11-15T10:46:45+00:00",
      "cve": "CVE-2025-11794",
      "id": "CVE-2025-11794",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Password hash and MFA secret returned in user email verification endpoint",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-11794.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-31T01:21:49Z",
      "cve": "CVE-2025-11794",
      "id": "CVE-2025-11794",
      "initial_release_date": "2026-07-31T01:21:49Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-11794",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-11794.json",
      "version": "2"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-11794\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-11-14T13:27:27.714952Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-11-14T13:28:02.812Z\"}}], \"cna\": {\"title\": \"Password hash and MFA secret returned in user email verification endpoint\", \"source\": {\"defect\": [\"https://mattermost.atlassian.net/browse/MM-65742\"], \"advisory\": \"MMSA-2025-00541\", \"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Christian Iwata Nilsson\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.9, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/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\": \"10.11.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"10.11.3\"}, {\"status\": \"affected\", \"version\": \"10.5.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"10.5.11\"}, {\"status\": \"affected\", \"version\": \"10.12.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"10.12.0\"}, {\"status\": \"unaffected\", \"version\": \"11.0.0\"}, {\"status\": \"unaffected\", \"version\": \"10.11.4\"}, {\"status\": \"unaffected\", \"version\": \"10.5.12\"}, {\"status\": \"unaffected\", \"version\": \"10.12.1\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Update Mattermost to versions 11.0.0, 10.11.4, 10.5.12, 10.12.1 or higher.\"}], \"references\": [{\"url\": \"https://mattermost.com/security-updates\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Mattermost versions 10.11.x \u003c= 10.11.3, 10.5.x \u003c= 10.5.11, 10.12.x \u003c= 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/{user_id}/email/verify/member endpoint\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor\"}]}], \"providerMetadata\": {\"orgId\": \"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee\", \"shortName\": \"Mattermost\", \"dateUpdated\": \"2025-11-14T10:45:39.244Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-11794\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-01T15:36:58.365Z\", \"dateReserved\": \"2025-10-15T13:45:32.170Z\", \"assignerOrgId\": \"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee\", \"datePublished\": \"2025-11-14T10:45:39.244Z\", \"assignerShortName\": \"Mattermost\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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.