Vulnerability in WordPress Foundation
CVE-2026-119977
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.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/4b4da0cf-d9f4-47c4-a0e8-6c4dc…
- core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-wp-upgra…
- core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-core-upg…
- core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/update-core.php
- core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/setup-config.php
- core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/class-wp-upgra…
- core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/update-core.php
- wordpress.org/news/2026/10/wordpress-7-1-4/
Frequently asked questions
- What is CVE-2026-119977?
- CVE-2026-119977 is a high-severity vulnerability in WordPress Foundation, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 8.1/10. Published 2026-10-31.
- How severe is CVE-2026-119977?
- High severity. CVSS v3 base score is 8.1 out of 10.