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CVE-2023-5057

Estado: ModificadaMedia (5.4)—

The ActivityPub WordPress plugin before 1.0.0 does not escape user metadata before outputting them in mentions, which could allow users with a role of Contributor and above to perform Stored XSS attacks

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)

Automattic — Activitypub

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-5057",
  "cveTags": [],
  "metrics": {
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      {
        "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": "contact@wpscan.com",
      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "ActivityPub",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.0.0",
              "versionType": "custom"
            }
          ],
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2023-10-16T20:15:17.573",
  "references": [
    {
      "url": "https://wpscan.com/vulnerability/58a63507-f0fd-46f1-a80c-6b1c41dddcf5",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "contact@wpscan.com"
    },
    {
      "url": "https://wpscan.com/vulnerability/58a63507-f0fd-46f1-a80c-6b1c41dddcf5",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The ActivityPub WordPress plugin before 1.0.0 does not escape user metadata before outputting them in mentions, which could allow users with a role of Contributor and above to perform Stored XSS attacks"
    },
    {
      "lang": "es",
      "value": "El complemento ActivityPub de WordPress anterior a 1.0.0 no escapa a los metadatos del usuario antes de mostrarlos en menciones, lo que podría permitir a los usuarios con un rol de Colaborador y superior realizar ataques XSS almacenados."
    }
  ],
  "lastModified": "2026-06-17T06:47:27.330",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:automattic:activitypub:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "78ADABE4-21BE-4F20-BE6D-BB12EDBCD26F",
              "versionEndExcluding": "1.0.0"
            }
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          "operator": "OR"
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      ]
    }
  ],
  "sourceIdentifier": "contact@wpscan.com"
}