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CVE-2026-4929

Estado: AnalizadaMedia (5.1)—

Simple Hierarchical Select (SHS) for Drupal 7 contains cross-site scripting risk due to improper output escaping of term-derived text. Confirmed affected paths include field formatter output (shs_field_formatter_view) and term-tree child-term data generation (shs_term_get_children). Malicious taxonomy term names can be rendered unsafely depending on output context. This affects versions from 7.x-1.0 through (and including) 7.x-1.10.

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 (1)

Simple Hierarchical Select Project — Simple Hierarchical Select

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-4929",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-4929",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-22T12:52:40.007115Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "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
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "mlhess@drupal.org",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 5.1,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "PASSIVE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "subIntegrityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "mlhess@drupal.org",
      "affectedData": [
        {
          "repo": "https://git.drupalcode.org/project/shs",
          "vendor": "Drupal",
          "product": "Simple Hierarchical Select (shs)",
          "versions": [
            {
              "status": "affected",
              "version": "7.x-1.0",
              "lessThan": "7.x-1.11",
              "versionType": "custom"
            }
          ],
          "collectionURL": "https://www.drupal.org/project/shs",
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2026-05-21T22:16:48.420",
  "references": [
    {
      "url": "https://d7es.tag1.com/security-advisories/simple-hierarchical-select-moderately-critical-cross-site-scripting",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "mlhess@drupal.org"
    },
    {
      "url": "https://www.herodevs.com/vulnerability-directory/cve-2026-4929",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "mlhess@drupal.org"
    },
    {
      "url": "https://www.herodevs.com/vulnerability-directory/cve-2026-4929?nes-for-drupal-7",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Simple Hierarchical Select (SHS) for Drupal 7 contains cross-site scripting risk due to improper output escaping of term-derived text. Confirmed affected paths include field formatter output (shs_field_formatter_view) and term-tree child-term data generation (shs_term_get_children). Malicious taxonomy term names can be rendered unsafely depending on output context.\nThis affects versions from 7.x-1.0 through (and including) 7.x-1.10."
    },
    {
      "lang": "es",
      "value": "Simple Hierarchical Select (SHS) para Drupal 7 contiene riesgo de cross-site scripting debido a un escape de salida incorrecto de texto derivado de términos. Las rutas afectadas confirmadas incluyen la salida del formateador de campo (shs_field_formatter_view) y la generación de datos de términos hijos del árbol de términos (shs_term_get_children). Nombres de términos de taxonomía maliciosos pueden ser renderizados de forma insegura dependiendo del contexto de salida.\nEsto afecta a las versiones desde la 7.x-1.0 hasta (e incluyendo) la 7.x-1.10."
    }
  ],
  "lastModified": "2026-07-23T16:10:00.137",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:simple_hierarchical_select_project:simple_hierarchical_select:*:*:*:*:*:drupal:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9A776A74-A4A3-4FF7-A4F3-A5117B841270",
              "versionEndIncluding": "7.x-1.10",
              "versionStartIncluding": "7.x-1.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "mlhess@drupal.org"
}