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CVE-2026-5371: Unauthorized Access in MonsterInsights WordPress Plugin
Plataforma
wordpress
Componente
google-analytics-for-wordpress
Corregido en
10.1.3
CVE-2026-5371 is a vulnerability affecting the MonsterInsights WordPress plugin, a popular tool for Google Analytics integration. This flaw allows authenticated attackers, even those with Subscriber-level access, to retrieve live Google OAuth access tokens and manipulate the plugin's Google Ads integration. The vulnerability exists in versions up to 10.1.2 and has been resolved in version 10.1.3, released on May 12, 2026.
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Impacto y Escenarios de Ataquetraduciendo…
The primary impact of CVE-2026-5371 is the unauthorized access and potential misuse of Google OAuth access tokens. An attacker who exploits this vulnerability could gain access to sensitive data associated with the website's Google Analytics and Google Ads accounts. This could include user data, campaign performance metrics, and potentially even billing information. The ability to reset the Google Ads integration further amplifies the impact, allowing an attacker to disrupt advertising campaigns and potentially redirect funds. While the vulnerability requires authentication, the low access level needed (Subscriber) significantly broadens the attack surface.
Contexto de Explotacióntraduciendo…
The vulnerability was published on May 12, 2026. No public exploits or proof-of-concept code have been observed at the time of writing. The CVSS score of 7.1 (HIGH) indicates a significant risk, and the ease of exploitation (requiring only Subscriber-level access) suggests that it could become a target for opportunistic attackers. The vulnerability is not currently listed on KEV or EPSS, but its potential impact warrants close monitoring.
Inteligencia de Amenazas
Estado del Exploit
EPSS
0.03% (8% percentil)
CISA SSVC
Vector CVSS
¿Qué significan estas métricas?
- Attack Vector
- Red — explotable remotamente por internet. Sin acceso físico ni local. Mayor superficie de ataque.
- Attack Complexity
- Baja — sin condiciones especiales. El atacante puede explotar de forma confiable sin configuraciones raras.
- Privileges Required
- Bajo — cualquier cuenta de usuario válida es suficiente.
- User Interaction
- Ninguna — el ataque es automático y silencioso. La víctima no hace nada.
- Scope
- Sin cambio — el impacto se limita al componente vulnerable.
- Confidentiality
- Alto — pérdida total de confidencialidad. El atacante puede leer todos los datos.
- Integrity
- Bajo — el atacante puede modificar algunos datos con alcance limitado.
- Availability
- Ninguno — sin impacto en disponibilidad.
Clasificación de Debilidad (CWE)
Cronología
- Reservado
- Publicada
- Modificada
- EPSS actualizado
Mitigación y Workaroundstraduciendo…
The primary mitigation for CVE-2026-5371 is to immediately upgrade the MonsterInsights plugin to version 10.1.3 or later. If upgrading is not immediately feasible due to compatibility issues or breaking changes, consider temporarily restricting access to the getadsaccesstoken() and resetexperience() functions. While not a complete fix, this can limit the attacker's ability to exploit the vulnerability. Review WordPress user roles and permissions to ensure that only necessary users have access. Monitor WordPress logs for suspicious activity related to Google OAuth authentication. After upgrading, confirm the fix by attempting to access the Google Ads integration with a Subscriber-level user account and verifying that access is denied.
Cómo corregirlo
Actualizar a la versión 10.1.3, o una versión parcheada más reciente
Preguntas frecuentestraduciendo…
What is CVE-2026-5371 — Unauthorized Access in MonsterInsights WordPress Plugin?
CVE-2026-5371 is a HIGH severity vulnerability in the MonsterInsights WordPress plugin that allows authenticated subscribers to retrieve Google OAuth tokens and reset Google Ads integration, potentially leading to data exposure and campaign disruption.
Am I affected by CVE-2026-5371 in MonsterInsights WordPress Plugin?
You are affected if you are using the MonsterInsights plugin in WordPress versions 10.1.2 or earlier. Check your plugin version and upgrade immediately if necessary.
How do I fix CVE-2026-5371 in MonsterInsights WordPress Plugin?
Upgrade the MonsterInsights plugin to version 10.1.3 or later. If immediate upgrade is not possible, temporarily restrict access to the vulnerable functions and review user permissions.
Is CVE-2026-5371 being actively exploited?
No public exploits have been observed at this time, but the vulnerability's ease of exploitation and potential impact suggest it could become a target. Continuous monitoring is recommended.
Where can I find the official MonsterInsights advisory for CVE-2026-5371?
Refer to the official MonsterInsights website and WordPress plugin repository for the latest security advisories and updates related to CVE-2026-5371.
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