FKIE_CVE-2020-8031

Vulnerability from fkie_nvd - Published: 2021-02-11 15:15 - Updated: 2026-06-17 03:25
Severity
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
A Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Open Build Service allows remote attackers to store JS code in markdown that is not properly escaped, impacting confidentiality and integrity. This issue affects: Open Build Service versions prior to 2.10.8.
References
meissner@suse.dehttps://bugzilla.suse.com/show_bug.cgi?id=1178880Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.suse.com/show_bug.cgi?id=1178880Exploit, Issue Tracking, Vendor Advisory
Impacted products
Vendor Product Version
opensuse open_build_service *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Open Build Service",
          "vendor": "openSUSE",
          "versions": [
            {
              "lessThan": "2.10.8",
              "status": "affected",
              "version": "Open Build Service",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "meissner@suse.de"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:opensuse:open_build_service:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E8F55C5F-CA51-47AF-8797-2F52D14E6AF9",
              "versionEndExcluding": "2.10.8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027) vulnerability in Open Build Service allows remote attackers to store JS code in markdown that is not properly escaped, impacting confidentiality and integrity. This issue affects: Open Build Service versions prior to 2.10.8."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de neutralizaci\u00f3n Inapropiada de la entrada Durante la Generaci\u00f3n de P\u00e1ginas Web (\"Cross-site Scripting\") en Open Build Service permite a atacantes remotos almacenar c\u00f3digo JS en rebajas que no se escapan correctamente, lo que afecta la confidencialidad e integridad.\u0026#xa0;Este problema afecta a: Open Build Service versiones anteriores a 2.10.8"
    }
  ],
  "id": "CVE-2020-8031",
  "lastModified": "2026-06-17T03:25:49.490",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 4.2,
        "source": "meissner@suse.de",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-02-11T15:15:11.973",
  "references": [
    {
      "source": "meissner@suse.de",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1178880"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1178880"
    }
  ],
  "sourceIdentifier": "meissner@suse.de",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "meissner@suse.de",
      "type": "Secondary"
    }
  ]
}



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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

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.



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.