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#TOCTOU

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#InSEKurity #CVE #WordPress #WordPress Core #Remote Code Execution

CVE Research

Nov 10, 2026

sekurity-team

InSEKurity of the Week (CW45/2026): WordPress Core Upgrade Race Condition RCE (CVE-2026-119977)

During a core update, WordPress unpacks the new release into a predictable, web-reachable folder -- including its installer. An unauthenticated attacker who wins that race swaps the live wp-config.php and takes over the site. CVSS 8.1, in CISA KEV since November 3, 2026, mass probing observed.

#InSEKurity #CVE #WordPress+7

Exploit

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