High Logic error

CVE-2026-119977 — WordPress 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.

Published Oct 31, 2026 · Updated Oct 31, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Wordfence

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

—

No EPSS score.

Affects

Wordpress

WordPress

CVSS base

8.1

High · 2 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Wordpress WordPress).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (logic error), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Wordpress	WordPress	≥ 5.9.0 and ≤ 5.9.19≥ 7.1.0 and ≤ 7.1.3≥ 7.0.0 and ≤ 7.0.7≥ 6.9.0 and ≤ 6.9.10≥ 6.8.0 and ≤ 6.8.11≥ 6.7.0 and ≤ 6.7.10≥ 6.6.0 and ≤ 6.6.10≥ 6.5.0 and ≤ 6.5.13 and 17 more ≥ 6.4.0 and ≤ 6.4.13≥ 6.3.0 and ≤ 6.3.13≥ 6.2.0 and ≤ 6.2.14≥ 6.1.0 and ≤ 6.1.15≥ 6.0.0 and ≤ 6.0.17≥ 4.7.0 and ≤ 4.7.38≥ 5.8.0 and ≤ 5.8.18≥ 5.7.0 and ≤ 5.7.20≥ 5.6.0 and ≤ 5.6.22≥ 5.5.0 and ≤ 5.5.23≥ 5.4.0 and ≤ 5.4.24≥ 5.3.0 and ≤ 5.3.26≥ 5.2.0 and ≤ 5.2.29≥ 5.1.0 and ≤ 5.1.27≥ 5.0.0 and ≤ 5.0.30≥ 4.9.0 and ≤ 4.9.34≥ 4.8.0 and ≤ 4.8.33	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

High

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
8.1	CVSS 3.1	High	2.2	5.9	security@wordfence.com via NIST National Vulnerability Database
8.1	CVSS 3.1	High	—	—	Wordfence via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H (score shown at the top: security@wordfence.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-367 · TOCTOU Race Condition

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).

web/proxy/WAF logsnetwork IDS/IPS

Timeline

What happened to this CVE, newest first.

2026
Affected products added · wordpress foundation/wordpress
Oct 31, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 31, 2026
CVSS changed · 8.1
Oct 31, 2026 · NIST National Vulnerability Database
Source status changed · → Received
Oct 31, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 31, 2026 · Alertas do Telegram
CVE published
Oct 31, 2026 · Wordfence

Source activity

Repeated readings are counted rather than listed.

1× References added · Oct 31, 2026 – Oct 31, 2026
1× Official description updated · Oct 31, 2026 – Oct 31, 2026

References

8 on the record

core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/update-core.php
NIST National Vulnerability Database
core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/setup-config.php
NIST National Vulnerability Database
www.wordfence.com/threat-intel/vulnerabilities/id/4b4da0cf-d9f4-47c4-a0e8-6c4dc5a6f250
NIST National Vulnerability Database
wordpress.org/news/2026/10/wordpress-7-1-4/
NIST National Vulnerability Database
core.trac.wordpress.org/browser/tags/7.1.4/src/wp-admin/includes/class-wp-upgrader.php
NIST National Vulnerability Database
core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-core-upgrader.php
NIST National Vulnerability Database
core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/class-wp-upgrader.php
NIST National Vulnerability Database
core.trac.wordpress.org/browser/tags/7.1.3/src/wp-admin/includes/update-core.php
NIST National Vulnerability Database

Elsewhere on this site

Wordpress
every CVE for this vendor

Logic error
same class

CWE-367
other pages naming this weakness

Related CVEs (same products)

Medium CVE-2026-114570 WordPress Core <= 7.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Quick Edit 9d
High CVE-2026-87902 WordPress Core Remote File Inclusion Vulnerability KEV Sep 22, 2026
High CVE-2026-65640 Unrestricted Upload of File with Dangerous Type in WordPress Aug 17, 2026
High CVE-2026-64638 Cross-site Scripting (XSS) in WordPress Aug 7, 2026
Critical CVE-2026-63030 WordPress Core Interpretation Conflict Vulnerability KEV Jul 17, 2026
Medium CVE-2026-60137 WordPress Core SQL Injection Vulnerability KEV Jul 17, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No FIRST EPSS score.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-119977 is "WordPress Core 4.7.0 - 7.1.3 - Unauthenticated Upgrade-Window Staged-Installer Remote Code Execution", rated High. It affects WordPress (Wordpress); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 8.1 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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