Occurred Nov 3, 2026, 12:00:00 AM UTC

First published Nov 4, 2026, 12:38:15 AM UTC · Last updated Nov 4, 2026, 12:38:15 AM UTC

CVE-2026-119977: WordPress WordPress Core Time-of-check Time-of-use (TOCTOU) Race Condition Vulnerability

Reported by CISA Known Exploited Vulnerabilities

The source describes a WordPress Core TOCTOU race condition that could allow unauthenticated code execution on the server during a full-package upgrade. It calls for applying mitigations in accordance with vendor instructions and CISA guidance.

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Why it matters

The source identifies a potential unauthenticated code-execution vulnerability and says mitigations are required.

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 5/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 1/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 5/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

CISA Known Exploited Vulnerabilities CVE-2026-119977: WordPress WordPress Core Time-of-check Time-of-use (TOCTOU) Race Condition Vulnerability

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