FKIE_CVE-2026-3997

Vulnerability from fkie_nvd - Published: 2026-03-21 04:17 - Updated: 2026-04-24 16:27
Severity ?
6.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Summary
The Text Toggle plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title' shortcode attribute of the [tt_part] and [tt] shortcodes in all versions up to and including 1.1. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, in the avp_texttoggle_part_shortcode() function, the 'title' attribute is extracted from shortcode attributes and concatenated directly into HTML output without any escaping — both within an HTML attribute context (title="...") on line 116 and in HTML content on line 119. While the 'class' attribute is properly validated using ctype_alnum(), the 'title' attribute has no sanitization whatsoever. An attacker can inject double-quote characters to break out of the title attribute and inject arbitrary HTML attributes including event handlers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/text-toggle/tags/1.1/avp-texttoggle.php#L108
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/text-toggle/tags/1.1/avp-texttoggle.php#L116
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/text-toggle/tags/1.1/avp-texttoggle.php#L119
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/text-toggle/tags/1.1/avp-texttoggle.php#L72
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/text-toggle/trunk/avp-texttoggle.php#L108
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/text-toggle/trunk/avp-texttoggle.php#L116
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/text-toggle/trunk/avp-texttoggle.php#L119
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/text-toggle/trunk/avp-texttoggle.php#L72
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/d7ac0683-120f-4e76-9d44-5ee1c789b2c8?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Text Toggle plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027title\u0027 shortcode attribute of the [tt_part] and [tt] shortcodes in all versions up to and including 1.1. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, in the avp_texttoggle_part_shortcode() function, the \u0027title\u0027 attribute is extracted from shortcode attributes and concatenated directly into HTML output without any escaping \u2014 both within an HTML attribute context (title=\"...\") on line 116 and in HTML content on line 119. While the \u0027class\u0027 attribute is properly validated using ctype_alnum(), the \u0027title\u0027 attribute has no sanitization whatsoever. An attacker can inject double-quote characters to break out of the title attribute and inject arbitrary HTML attributes including event handlers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
    },
    {
      "lang": "es",
      "value": "El plugin Text Toggle para WordPress es vulnerable a Cross-Site Scripting Almacenado a trav\u00e9s del atributo \u0027title\u0027 del shortcode de los shortcodes [tt_part] y [tt] en todas las versiones hasta la 1.1 inclusive. Esto se debe a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes en los atributos de shortcode proporcionados por el usuario. Espec\u00edficamente, en la funci\u00f3n avp_texttoggle_part_shortcode(), el atributo \u0027title\u0027 se extrae de los atributos del shortcode y se concatena directamente en la salida HTML sin ning\u00fan escape \u2014 tanto dentro de un contexto de atributo HTML (title=\"...\") en la l\u00ednea 116 como en el contenido HTML en la l\u00ednea 119. Mientras que el atributo \u0027class\u0027 se valida correctamente usando ctype_alnum(), el atributo \u0027title\u0027 no tiene ninguna sanitizaci\u00f3n en absoluto. Un atacante puede inyectar caracteres de comillas dobles para salir del atributo title e inyectar atributos HTML arbitrarios, incluidos los controladores de eventos. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador y superior, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."
    }
  ],
  "id": "CVE-2026-3997",
  "lastModified": "2026-04-24T16:27:44.277",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 2.7,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-21T04:17:37.530",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/text-toggle/tags/1.1/avp-texttoggle.php#L108"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/text-toggle/tags/1.1/avp-texttoggle.php#L116"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/text-toggle/tags/1.1/avp-texttoggle.php#L119"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/text-toggle/tags/1.1/avp-texttoggle.php#L72"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/text-toggle/trunk/avp-texttoggle.php#L108"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/text-toggle/trunk/avp-texttoggle.php#L116"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/text-toggle/trunk/avp-texttoggle.php#L119"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/text-toggle/trunk/avp-texttoggle.php#L72"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d7ac0683-120f-4e76-9d44-5ee1c789b2c8?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}


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