WordPress WordPress Core

What it is

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.

What to do

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.

Vendor notices and references

• wordpress.org/news/2026/10/wordpress-7-1-4
• www.wordfence.com/threat-intel/vulnerabilities/wordpress-core/wordpress-core-470-713-unaut
• nvd.nist.gov/vuln/detail/CVE-2026-119977

Description and required action as published by CISA. Full record at NVD.