CVE-2026-119977WordPress Core 4.7.0 - 7.1.3 - Unauthenticated Upgrade-Window Staged-Installer Remote Code Execution
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.
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.1 | HIGH | 3.1Wordfence (CNA) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
CISA required action
⚡ Known exploited · remediation due Nov 6, 2026
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.
Details
- CVE ID
- CVE-2026-119977
- Status
- Analyzed
- Assigner (CNA)
- Wordfence
- Published
- Oct 31, 2026
- Last modified
- 2026-11-04 12:52 UTC
- Weaknesses
- CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition
Affected Products
As published by the CNA in the CVE record.
WordPress FoundationWordPress25 version ranges
- 4.7.0 through 4.7.38
- 4.8.0 through 4.8.33
- 4.9.0 through 4.9.34
- 5.0.0 through 5.0.30
- 5.1.0 through 5.1.27
- 5.2.0 through 5.2.29
- 5.3.0 through 5.3.26
- 5.4.0 through 5.4.24
- 5.5.0 through 5.5.23
- 5.6.0 through 5.6.22
- 5.7.0 through 5.7.20
- 5.8.0 through 5.8.18
- 5.9.0 through 5.9.19
- 6.0.0 through 6.0.17
- 6.1.0 through 6.1.15
- 6.2.0 through 6.2.14
- 6.3.0 through 6.3.13
- 6.4.0 through 6.4.13
- 6.5.0 through 6.5.13
- 6.6.0 through 6.6.10
- 6.7.0 through 6.7.10
- 6.8.0 through 6.8.11
- 6.9.0 through 6.9.10
- 7.0.0 through 7.0.7
- 7.1.0 through 7.1.3
References
- core.trac.wordpress.org https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-core-upgrader.php#L162
- core.trac.wordpress.org https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-wp-upgrader.php#L378
- core.trac.wordpress.org https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/update-core.php#L1549
- core.trac.wordpress.org https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/setup-config.php#L282
- core.trac.wordpress.org https://core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/class-wp-upgrader.php#L346
- core.trac.wordpress.org https://core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/update-core.php#L1545
- wordpress.org https://wordpress.org/news/2026/10/wordpress-7-1-4/
- wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/4b4da0cf-d9f4-47c4-a0e8-6c4dc5a6f250?source=cve
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-119977
- wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-core/wordpress-core-470-713-unauthenticated-upgrade-window-staged-installer-remote-code-execution