FKIE_CVE-2014-3146

Vulnerability from fkie_nvd - Published: 2014-05-14 19:55 - Updated: 2026-06-17 00:07
Summary
Incomplete blacklist vulnerability in the lxml.html.clean module in lxml before 3.3.5 allows remote attackers to conduct cross-site scripting (XSS) attacks via control characters in the link scheme to the clean_html function.
References
secalert@redhat.comhttp://advisories.mageia.org/MGASA-2014-0218.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-updates/2014-05/msg00083.html
secalert@redhat.comhttp://lxml.de/3.3/changes-3.3.5.html
secalert@redhat.comhttp://seclists.org/fulldisclosure/2014/Apr/210
secalert@redhat.comhttp://seclists.org/fulldisclosure/2014/Apr/319Exploit
secalert@redhat.comhttp://secunia.com/advisories/58013Vendor Advisory
secalert@redhat.comhttp://secunia.com/advisories/58744
secalert@redhat.comhttp://secunia.com/advisories/59008
secalert@redhat.comhttp://www.debian.org/security/2014/dsa-2941
secalert@redhat.comhttp://www.mandriva.com/security/advisories?name=MDVSA-2015:112
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2014/05/09/7
secalert@redhat.comhttp://www.securityfocus.com/bid/67159Exploit
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2217-1
secalert@redhat.comhttps://mailman-mail5.webfaction.com/pipermail/lxml/2014-April/007128.htmlExploit
af854a3a-2127-422b-91ae-364da2661108http://advisories.mageia.org/MGASA-2014-0218.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2014-05/msg00083.html
af854a3a-2127-422b-91ae-364da2661108http://lxml.de/3.3/changes-3.3.5.html
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2014/Apr/210
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2014/Apr/319Exploit
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/58013Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/58744
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/59008
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2014/dsa-2941
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDVSA-2015:112
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2014/05/09/7
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/67159Exploit
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2217-1
af854a3a-2127-422b-91ae-364da2661108https://mailman-mail5.webfaction.com/pipermail/lxml/2014-April/007128.htmlExploit
Impacted products
Vendor Product Version
lxml lxml *
lxml lxml 0.5
lxml lxml 0.5.1
lxml lxml 0.6
lxml lxml 0.7
lxml lxml 0.8
lxml lxml 0.9
lxml lxml 0.9.1
lxml lxml 0.9.2
lxml lxml 1.0
lxml lxml 1.0.1
lxml lxml 1.0.2
lxml lxml 1.0.3
lxml lxml 1.0.4
lxml lxml 1.1
lxml lxml 1.1.1
lxml lxml 1.1.2
lxml lxml 1.2
lxml lxml 1.2.1
lxml lxml 1.3
lxml lxml 1.3.1
lxml lxml 1.3.2
lxml lxml 1.3.3
lxml lxml 1.3.4
lxml lxml 1.3.5
lxml lxml 1.3.6
lxml lxml 2.0
lxml lxml 2.0.1
lxml lxml 2.0.2
lxml lxml 2.0.3
lxml lxml 2.0.4
lxml lxml 2.0.5
lxml lxml 2.0.6
lxml lxml 2.0.7
lxml lxml 2.0.8
lxml lxml 2.0.9
lxml lxml 2.0.10
lxml lxml 2.0.11
lxml lxml 2.1
lxml lxml 2.1
lxml lxml 2.1
lxml lxml 2.1
lxml lxml 2.1.1
lxml lxml 2.1.2
lxml lxml 2.1.3
lxml lxml 2.1.4
lxml lxml 2.2
lxml lxml 2.2
lxml lxml 2.2
lxml lxml 2.2
lxml lxml 2.2
lxml lxml 2.2
lxml lxml 2.2.1
lxml lxml 2.2.2
lxml lxml 2.2.3
lxml lxml 2.2.4
lxml lxml 2.2.5
lxml lxml 2.2.6
lxml lxml 2.2.7
lxml lxml 2.2.8
lxml lxml 2.3
lxml lxml 2.3
lxml lxml 2.3
lxml lxml 2.3
lxml lxml 2.3.1
lxml lxml 2.3.2
lxml lxml 2.3.3
lxml lxml 2.3.4
lxml lxml 2.3.5
lxml lxml 2.3.6
lxml lxml 3.0
lxml lxml 3.0
lxml lxml 3.0
lxml lxml 3.0
lxml lxml 3.0.1
lxml lxml 3.0.2
lxml lxml 3.1
lxml lxml 3.1.0
lxml lxml 3.1.1
lxml lxml 3.1.2
lxml lxml 3.2.0
lxml lxml 3.2.1
lxml lxml 3.2.2
lxml lxml 3.2.3
lxml lxml 3.2.4
lxml lxml 3.2.5
lxml lxml 3.3.0
lxml lxml 3.3.0
lxml lxml 3.3.0
lxml lxml 3.3.0
lxml lxml 3.3.0
lxml lxml 3.3.0
lxml lxml 3.3.1
lxml lxml 3.3.2
lxml lxml 3.3.3

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
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              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incomplete blacklist vulnerability in the lxml.html.clean module in lxml before 3.3.5 allows remote attackers to conduct cross-site scripting (XSS) attacks via control characters in the link scheme to the clean_html function."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de lista negra incompleta en el m\u00f3dulo lxml.html.clean en lxml anterior a 3.3.5 permite a atacantes remotos realizar ataques de XSS a trav\u00e9s de caracteres de control en la esquema de enlace hacia la funci\u00f3n clean_html."
    }
  ],
  "evaluatorComment": "Per: http://cwe.mitre.org/data/definitions/184.html\n\n\"CWE-184: Incomplete Blacklist\"",
  "id": "CVE-2014-3146",
  "lastModified": "2026-06-17T00:07:40.070",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "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": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2014-3146",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-12-17T20:54:15.303305Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2014-05-14T19:55:11.653",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://advisories.mageia.org/MGASA-2014-0218.html"
    },
    {
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      "url": "http://lists.opensuse.org/opensuse-updates/2014-05/msg00083.html"
    },
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      "url": "http://lxml.de/3.3/changes-3.3.5.html"
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      "url": "http://seclists.org/fulldisclosure/2014/Apr/210"
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      "url": "http://seclists.org/fulldisclosure/2014/Apr/319"
    },
    {
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      "tags": [
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      "url": "http://www.debian.org/security/2014/dsa-2941"
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/58744"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/59008"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.org/security/2014/dsa-2941"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:112"
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    {
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    {
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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    {
      "description": [
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          "lang": "en",
          "value": "CWE-79"
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      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "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.

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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.


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