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CVE-2020-5266

Estado: ModificadaMedia (5.4)—

En el módulo ps_link para PrestaShop versiones anteriores a la versión 3.1.0, tiene una vulnerabilidad de tipo XSS almacenado cuando se crea o edita un bloque de lista de enlaces con el campo title. El problema es corregido en la versión 3.1.0

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.

Fuente: mapeo oficial MITRE CTID (CVE → ATT&CK).

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

User TrainingRestrict Web-Based ContentDisable or Remove Feature or ProgramNetwork SegmentationNetwork Intrusion PreventionLimit Access to Resource Over Network

Tecnologías afectadas (1)

Prestashop — Prestashop Link

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-5266",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 4.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 1.3
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.3
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "PrestaShop",
          "product": "ps_linklist",
          "versions": [
            {
              "status": "affected",
              "version": "< 3.1.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-04-16T22:15:13.713",
  "references": [
    {
      "url": "https://github.com/PrestaShop/ps_linklist/commit/b90005c2cfed949ab564228b277a728e0a62a876",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/PrestaShop/ps_linklist/security/advisories/GHSA-vr7g-vqp5-966j",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/PrestaShop/ps_linklist/commit/b90005c2cfed949ab564228b277a728e0a62a876",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/PrestaShop/ps_linklist/security/advisories/GHSA-vr7g-vqp5-966j",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the ps_link module for PrestaShop before version 3.1.0, there is a stored XSS when you create or edit a link list block with the title field. The problem is fixed in 3.1.0"
    },
    {
      "lang": "es",
      "value": "En el módulo ps_link para PrestaShop versiones anteriores a la versión 3.1.0, tiene una vulnerabilidad de tipo XSS almacenado cuando se crea o edita un bloque de lista de enlaces con el campo title. El problema es corregido en la versión 3.1.0"
    }
  ],
  "lastModified": "2026-06-17T03:21:09.910",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:prestashop:prestashop_link:*:*:*:*:*:prestashop:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EDE41F4B-391F-4A65-B70E-8BF562CA2ED0",
              "versionEndExcluding": "3.1.0",
              "versionStartIncluding": "1.0.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}