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CVE-2026-94376

Estado: AplazadaMedia (6.4)—

The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via User Display Name in all versions up to, and including, 3.0.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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This is exploitable by Subscriber-level users because WordPress core's sanitize_text_field() preserves HTML-entity-encoded payloads (e.g., an iframe srcdoc attribute), allowing the encoded string to be stored as a display name without requiring the unfiltered_html capability, and the plugin subsequently decodes it server-side before rendering.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Aplicación web vulnerable a XSS almacenado por sanitización insuficiente (CWE-79). Autenticados con nivel Subscriber pueden inyectar scripts que se ejecutan en navegadores de otros usuarios (T1059.007, T1189).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningRestrict Web-Based ContentPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network Traffic

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Wordplus — Better MessagesAI

CWE

Referencias

JSON original (NVD)

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  "cveTags": [],
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        "ssvcData": {
          "id": "CVE-2026-94376",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
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            {
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            {
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          "version": "2.0.3",
          "timestamp": "2026-09-25T12:51:44.332589Z"
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          "attackVector": "NETWORK",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
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          "userInteraction": "NONE",
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          "confidentialityImpact": "LOW"
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  "published": "2026-09-25T07:16:56.753",
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      "url": "https://plugins.trac.wordpress.org/changeset?old_path=bp-better-messages%2Ftags%2F3.0.3%2Faddons%2Fbuddyboss.php&new_path=bp-better-messages%2Ftags%2F3.0.5%2Faddons%2Fbuddyboss.php",
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      "description": [
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via User Display Name in all versions up to, and including, 3.0.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable by Subscriber-level users because WordPress core's sanitize_text_field() preserves HTML-entity-encoded payloads (e.g., an iframe srcdoc attribute), allowing the encoded string to be stored as a display name without requiring the unfiltered_html capability, and the plugin subsequently decodes it server-side before rendering."
    }
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  "lastModified": "2026-09-25T14:17:24.803",
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