Vulnerability details
CVE-2026-119977
Actively exploited
WordPress Foundation WordPress
WordPress Core 4.7.0 - 7.1.3 - Unauthenticated Upgrade-Window Staged-Installer Remote Code Execution
CVSS 3.1
8.1High
Official description
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.
Related news
-
Installing the Fix for an Exploited WordPress Flaw Can Expose Some Sites One Last Time
The Hacker News · 3 d ago
-
CISA Confirms Hackers Exploiting WordPress Core Flaw During Software Upgrades
The Hacker News · 5 d ago
-
U.S. CISA adds WordPress flaw to its Known Exploited Vulnerabilities catalog
Security Affairs · 6 d ago
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (Wordfence) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| WordPress Foundation | WordPress | 4.7.0 ≤ v ≤ 4.7.38 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 4.8.0 ≤ v ≤ 4.8.33 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 4.9.0 ≤ v ≤ 4.9.34 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.0.0 ≤ v ≤ 5.0.30 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.1.0 ≤ v ≤ 5.1.27 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.2.0 ≤ v ≤ 5.2.29 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.3.0 ≤ v ≤ 5.3.26 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.4.0 ≤ v ≤ 5.4.24 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.5.0 ≤ v ≤ 5.5.23 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.6.0 ≤ v ≤ 5.6.22 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.7.0 ≤ v ≤ 5.7.20 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.8.0 ≤ v ≤ 5.8.18 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 5.9.0 ≤ v ≤ 5.9.19 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.0.0 ≤ v ≤ 6.0.17 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.1.0 ≤ v ≤ 6.1.15 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.2.0 ≤ v ≤ 6.2.14 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.3.0 ≤ v ≤ 6.3.13 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.4.0 ≤ v ≤ 6.4.13 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.5.0 ≤ v ≤ 6.5.13 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.6.0 ≤ v ≤ 6.6.10 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.7.0 ≤ v ≤ 6.7.10 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.8.0 ≤ v ≤ 6.8.11 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 6.9.0 ≤ v ≤ 6.9.10 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 7.0.0 ≤ v ≤ 7.0.7 | CVEProject cvelistV5 (CNA) |
| WordPress Foundation | WordPress | 7.1.0 ≤ v ≤ 7.1.3 | CVEProject cvelistV5 (CNA) |
References and advisories
10- https://www.wordfence.com/threat-intel/vulnerabilities/id/4b4da0cf-d9f4-47c4-a0e8-6c4dc5a6f250?source=cve
- https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-wp-upgrader.php#L378
- https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-core-upgrader.php#L162
- https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/update-core.php#L1549
- https://core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/setup-config.php#L282
- https://core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/class-wp-upgrader.php#L346
- https://core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/update-core.php#L1545
- https://wordpress.org/news/2026/10/wordpress-7-1-4/
- https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-core/wordpress-core-470-713-unauthenticated-upgrade-window-staged-installer-remote-code-execution third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-119977 government-resource
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Details
- Published
- 2026-10-31
- Last updated
- 2026-11-04
- State
- Published
- Assigner (CNA)
- Wordfence
- Kolun priority
- 69 · High
CISA KEV catalog
- Date added
- 2026-11-03
- Due date
- 2026-11-06
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
1.19%
Probability of exploitation in 30 days
68.3%
Percentile (among all CVEs)
- 2026-11-051.15%
- 2026-11-030.6%
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition