FKIE_CVE-2023-2793

Vulnerability from fkie_nvd - Published: 2023-06-16 10:15 - Updated: 2024-11-21 07:59
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.
References
responsibledisclosure@mattermost.comhttps://mattermost.com/security-updates/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://mattermost.com/security-updates/Vendor Advisory
Impacted products
Vendor Product Version
mattermost mattermost *
mattermost mattermost *
mattermost mattermost 7.10.0
To clipboard 

{
  "configurations": [
    {
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        {
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              "matchCriteriaId": "5CD5238E-205F-43CF-9487-8956194F4950",
              "versionEndIncluding": "7.8.3",
              "versionStartIncluding": "7.8.0",
              "vulnerable": true
            },
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.\n\n"
    }
  ],
  "id": "CVE-2023-2793",
  "lastModified": "2024-11-21T07:59:18.110",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "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"
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        "impactScore": 3.6,
        "source": "responsibledisclosure@mattermost.com",
        "type": "Secondary"
      },
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
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          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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        "impactScore": 3.6,
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        "type": "Primary"
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  "published": "2023-06-16T10:15:09.270",
  "references": [
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      "source": "responsibledisclosure@mattermost.com",
      "tags": [
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      ],
      "url": "https://mattermost.com/security-updates/"
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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  "vulnStatus": "Modified",
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          "value": "CWE-400"
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      "source": "nvd@nist.gov",
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}


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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

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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.