FKIE_CVE-2021-39202

Vulnerability from fkie_nvd - Published: 2021-09-09 22:15 - Updated: 2024-11-21 06:18
Severity ?
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the Custom HTML feature. This leads to stored XSS in the custom HTML widget. This has been patched in WordPress 5.8. It was only present during the testing/beta phase of WordPress 5.8.
References
security-advisories@github.comhttps://github.com/WordPress/wordpress-develop/security/advisories/GHSA-fr6h-3855-j297Third Party Advisory
security-advisories@github.comhttps://hackerone.com/reports/1222797Permissions Required
af854a3a-2127-422b-91ae-364da2661108https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-fr6h-3855-j297Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1222797Permissions Required
Impacted products
Vendor Product Version
wordpress wordpress 5.8
wordpress wordpress 5.8
To clipboard 

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              "criteria": "cpe:2.3:a:wordpress:wordpress:5.8:beta1:*:*:*:*:*:*",
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      "lang": "en",
      "value": "WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the Custom HTML feature. This leads to stored XSS in the custom HTML widget. This has been patched in WordPress 5.8. It was only present during the testing/beta phase of WordPress 5.8."
    },
    {
      "lang": "es",
      "value": "WordPress es un sistema de administraci\u00f3n de contenidos gratuito y de c\u00f3digo abierto escrito en PHP y emparejado con una base de datos MySQL o MariaDB. En versiones afectadas, el editor de widgets introducido en la versi\u00f3n 5.8 beta 1 de WordPress, presenta un manejo inapropiado de la entrada HTML en la funcionalidad Custom HTML. Esto conlleva a una vulnerabilidad de tipo XSS almacenado en el widget de HTML personalizado. Esto ha sido parcheado en WordPress versi\u00f3n 5.8. S\u00f3lo estuvo presente durante la fase de pruebas/beta de WordPress versi\u00f3n 5.8"
    }
  ],
  "id": "CVE-2021-39202",
  "lastModified": "2024-11-21T06:18:53.330",
  "metrics": {
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          "integrityImpact": "PARTIAL",
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          "attackVector": "NETWORK",
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          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
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  "vulnStatus": "Modified",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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