CVE Watch4 de nov. de 2026

CVE-2026-119977

WordPress WordPress Core Time-of-check Time-of-use (TOCTOU) Race Condition Vulnerability

CVSS

8.1

Alta

EPSS

1.2%

p67

KEV

SIM

3 de nov. de 2026

Exploit Today

0-100

Publicado: 31 de out. de 2026 · Última mod.: 4 de nov. de 2026 · CWE-367

EPSS · 30d

0.6%EPSS · 30 dias1.2%

2026-10-312026-11-05

Ficha do catálogo KEV

Produto

WordPress / WordPress Core

Vulnerabilidade

WordPress WordPress Core Time-of-check Time-of-use (TOCTOU) Race Condition Vulnerability

Adicionado ao KEV

3 de nov. de 2026

Corrigir até

6 de nov. de 2026

Uso conhecido em ransomware

Não

Descrição resumida

WordPress WordPress Core contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that could allow unauthenticated attackers to execute code on the server during the upgrade window. This is due to predictable, web-accessible staging paths used during full-package core upgrades.

Ação necessária

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Notas

https://wordpress.org/news/2026/10/wordpress-7-1-4 ; https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-core/wordpress-core-470-713-unauthenticated-upgrade-window-staged-installer-remote-code-execution ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-119977

Descrição técnica

WordPress Core is vulnerable to Remote Code Execution in versions 4.7 through 7.1.3. This is due to predictable, web-accessible staging paths used during full-package core upgrades. This makes it possible for unauthenticated attackers to execute code on the server during the upgrade window.

Referências oficiais

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