WordPress <= 6.9.1 - Cross-Site Scripting via Client-Side Template Override in Admin Area
WordPress core is vulnerable to Cross-Site Scripting via client-side template overriding in the admin area in all versions up to and including 6.9.1. The wp.template() JavaScript function uses document.getElementById() to locate templates, which matches any HTML element by ID regardless of element type. WordPress admin templates are intended to be <script type="text/html" id="tmpl-*"> elements, but getElementById also matches <div>, <img>, and other injected elements. If an attacker can inject a non-script element with a matching tmpl-* ID, the template content is overridden with attacker-controlled HTML, which is then compiled by Underscore.js _.template() with JavaScript execution support. This is a conditional vulnerability that requires an existing HTML injection vector in the admin context.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| WordPress (núcleo) | WordPress | >= 6.8, <= 6.8.3, >= 6.9, <= 6.9.1 | 6.8.4, 6.9.2 |
Referencias
- Vector CVSS
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N- Debilidad (CWE)
CWE-79- Plataforma
- WordPress
- Paquete
WordPress- Publicada
- 10.03.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
Wordfence Intelligence - 72273368-042d-4ad4-9d1d-ca9c6db9cf3b - Wordfence Intelligence
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Historial de vulnerabilidades: WordPress
Todas las vulnerabilidades publicadas de este paquete (WordPress (núcleo)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 385
- Primera → última
- 06.2003 10.2026
- Sin corrección
- 0
- Explotada en ataques
- 3
Distribución por gravedad
- Crítica 16
- Alta 95
- Media 263
- Baja 11
Divulgaciones por año
- 2017: 39
- 2018: 15
- 2019: 22
- 2020: 23
- 2021: 5
- 2022: 20
- 2023: 14
- 2024: 4
- 2025: 2
- 2026: 36
antes: 205
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WordPress <= 6.9.1 - Cross-Site Scripting via Client-Side Template Override in Admin Area esta entrada
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