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CVE-2023-43665

Estado: ModificadaAlta (7.5)—

In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Djangoproject — DjangoFedoraproject — Fedora

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2023-43665",
  "cveTags": [],
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        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
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  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  "published": "2023-11-03T05:15:30.047",
  "references": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1284"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232."
    },
    {
      "lang": "es",
      "value": "En Django 3.2 anterior a 3.2.22, 4.1 anterior a 4.1.12 y 4.2 anterior a 4.2.6, los métodos django.utils.text.Truncator chars() y palabras() (cuando se usan con html=True) están sujetos a un potencial Ataque DoS (denegación de servicio) a través de ciertas entradas con texto HTML muy largo y potencialmente mal formado. Los métodos chars() y palabras() se utilizan para implementar los filtros de plantilla truncatechars_html y truncatewords_html, que por tanto también son vulnerables. NOTA: este problema existe debido a una solución incompleta para CVE-2019-14232."
    }
  ],
  "lastModified": "2026-06-17T06:26:11.360",
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