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FKIE_CVE-2021-24544

Vulnerability from fkie_nvd - Published: 2021-10-25 14:15 - Updated: 2026-06-17 03:40
Summary
The Responsive WordPress Slider WordPress plugin through 2.2.0 does not sanitise and escape some of the Slider options, allowing Cross-Site Scripting payloads to be set in them. Furthermore, as by default any authenticated user is allowed to create Sliders (https://wordpress.org/support/topic/slider-can-be-changed-from-any-user-even-subscriber/, such settings can be changed in the plugin's settings), this would allow user with a role as low as subscriber to perform Cross-Site Scripting attacks against logged in admins viewing the slider list and could lead to privilege escalation by creating a rogue admin account for example.
Impacted products
Vendor Product Version
motopress motopress-slider-lite *

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Responsive WordPress Slider",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThanOrEqual": "2.2.0",
              "status": "affected",
              "version": "2.2.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "contact@wpscan.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:motopress:motopress-slider-lite:*:*:*:*:*:wordpress:*:*",
              "matchCriteriaId": "B706A86D-75B8-4D09-BFA4-D1E689BB5B85",
              "versionEndIncluding": "2.2.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Responsive WordPress Slider WordPress plugin through 2.2.0 does not sanitise and escape some of the Slider options, allowing Cross-Site Scripting payloads to be set in them. Furthermore, as by default any authenticated user is allowed to create Sliders (https://wordpress.org/support/topic/slider-can-be-changed-from-any-user-even-subscriber/, such settings can be changed in the plugin\u0027s settings), this would allow user with a role as low as subscriber to perform Cross-Site Scripting attacks against logged in admins viewing the slider list and could lead to privilege escalation by creating a rogue admin account for example."
    },
    {
      "lang": "es",
      "value": "El plugin Responsive WordPress Slider de WordPress versiones hasta 2.2.0, no sanea y escapa de algunas de las opciones del Slider, permitiendo que se establezcan cargas \u00fatiles de tipo Cross-Site Scripting en ellas. Adem\u00e1s, como por defecto cualquier usuario autenticado puede crear Sliders (https://wordpress.org/support/topic/slider-can-be-changed-from-any-user-even-subscriber/, esta configuraci\u00f3n puede ser cambiada en los ajustes del plugin), esto permitir\u00eda a usuarios con un rol tan bajo como el de suscriptor, llevar a cabo ataques de tipo Cross-Site Scripting contra los administradores registrados visualizando la lista de los sliders y podr\u00eda conllevar a una escalada de privilegios al crear una cuenta de administrador falsa, por ejemplo"
    }
  ],
  "id": "CVE-2021-24544",
  "lastModified": "2026-06-17T03:40:12.650",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-10-25T14:15:10.347",
  "references": [
    {
      "source": "contact@wpscan.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://wpscan.com/vulnerability/4a2dddfc-6ce2-4edd-aaaa-4c130a9356d0"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://wpscan.com/vulnerability/4a2dddfc-6ce2-4edd-aaaa-4c130a9356d0"
    }
  ],
  "sourceIdentifier": "contact@wpscan.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "contact@wpscan.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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