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CVE-2026-93873

Estado: AplazadaMedia (5.3)—

Cotonti through 1.0.0 fails to validate anti-CSRF tokens in the contact plugin submission handler, allowing attackers to forge messages. Attackers can auto-submit contact forms from attacker-controlled pages to send forged messages attributed to authenticated victims to the administrator inbox.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

CSRF sin validación de tokens (CWE-352) permite enviar formularios falsificados mediante phishing de sitios controlados por atacante (UI:P). Falta validación CSRF permite manipulación de mensajes atribuidos a víctimas.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Application Isolation and SandboxingExploit ProtectionUpdate Software

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Cotonti — CotontiAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-93873",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-93873",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-18T20:20:44.146800Z"
        }
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    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
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    ],
    "cvssMetricV40": [
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        "type": "Secondary",
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          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
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          "valueDensity": "NOT_DEFINED",
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          "exploitMaturity": "NOT_DEFINED",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "affected": [
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      "source": "disclosure@vulncheck.com",
      "affectedData": [
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          "repo": "https://github.com/Cotonti/Cotonti",
          "vendor": "Cotonti",
          "product": "Cotonti",
          "versions": [
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              "version": "0",
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              "lessThanOrEqual": "1.0.0"
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          "packageURL": "pkg:composer/cotonti/cotonti",
          "programFiles": [
            "plugins/contact/contact.php"
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  "published": "2026-09-18T20:17:35.400",
  "references": [
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      "url": "https://github.com/Cotonti/Cotonti",
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    {
      "url": "https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/contact/contact.php",
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    {
      "url": "https://github.com/Cotonti/Cotonti/issues/1895",
      "source": "disclosure@vulncheck.com"
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      "url": "https://github.com/Cotonti/Cotonti/pull/1903",
      "source": "disclosure@vulncheck.com"
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      "url": "https://www.vulncheck.com/advisories/cotonti-through-1.0.0-cross-site-request-forgery-in-the-contact-plugin",
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      "description": [
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          "value": "CWE-352"
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cotonti through 1.0.0 fails to validate anti-CSRF tokens in the contact plugin submission handler, allowing attackers to forge messages. Attackers can auto-submit contact forms from attacker-controlled pages to send forged messages attributed to authenticated victims to the administrator inbox."
    }
  ],
  "lastModified": "2026-09-22T20:53:07.383",
  "sourceIdentifier": "disclosure@vulncheck.com"
}