HIGH · CVSS 8.1 ACTIVELY EXPLOITED PATCH AVAILABLE

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

Facts
VendorWordPress
ProductWordPress Core
CVSS score8.1 · CVSS 3.1 · HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS1.2% (percentile 68)
Actively exploitedYes, according to CISA KEV
Added to CISA KEV3 Nov 2026
CISA federal deadline6 Nov 2026
Weakness (CWE)CWE-367
NVD published31 Oct 2026
NVD last modified4 Nov 2026
NVD statusAnalyzed

Affected versions

ProductAffected versionsFixed in
Wordpress Wordpressfrom 4.7 before 4.7.394.7.39
Wordpress Wordpressfrom 4.8 before 4.8.344.8.34
Wordpress Wordpressfrom 4.9 before 4.9.354.9.35
Wordpress Wordpressfrom 5.0 before 5.0.315.0.31
Wordpress Wordpressfrom 5.1 before 5.1.285.1.28
Wordpress Wordpressfrom 5.2 before 5.2.305.2.30
Wordpress Wordpressfrom 5.3 before 5.3.275.3.27
Wordpress Wordpressfrom 5.4 before 5.4.255.4.25
Wordpress Wordpressfrom 5.5 before 5.5.245.5.24
Wordpress Wordpressfrom 5.6 before 5.6.235.6.23
Wordpress Wordpressfrom 5.7 before 5.7.215.7.21
Wordpress Wordpressfrom 5.8 before 5.8.195.8.19
Wordpress Wordpressfrom 5.9 before 5.9.205.9.20
Wordpress Wordpressfrom 6.0 before 6.0.186.0.18
Wordpress Wordpressfrom 6.1 before 6.1.166.1.16
Wordpress Wordpressfrom 6.2 before 6.2.156.2.15
Wordpress Wordpressfrom 6.3 before 6.3.146.3.14
Wordpress Wordpressfrom 6.4 before 6.4.146.4.14
Wordpress Wordpressfrom 6.5 before 6.5.146.5.14
Wordpress Wordpressfrom 6.6 before 6.6.116.6.11

+5 more

Required action (CISA's text)

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.

Description (NVD)

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.

Vendor advisories

SOURCES

Other WordPress flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 4 Nov 2026.