WordPress 6.4.12

WordPress 6.4.12 has 16 disclosed vulnerabilities in the WordSec catalog, reported between 2012 and 2026; all 16 are fixed as of October 2026. Their average CVSS score is 4.6, and the most serious one scores 7.2 out of 10. Severity breakdown: 0 critical and 1 high. 2026 was the busiest year with 15 disclosures.

The most common weakness is Cross-Site Scripting, behind 3 of the records (19%). Other recurring categories include Missing Authorization, Exposure Of Sensitive Information To An Unauthorized Actor.

Every one of the 16 issues recorded for WordPress 6.4.12 has a vendor fix available, so running the current release closes all known holes.

12 independent researchers contributed these findings, most of them (4) reported by Anthropic.

01234567891020.06.2012Today20.06.20123.7WordPress Core - Informational < 6.8 - Weak Hashing Algorithm CVSS 3.7 · 20.06.201217.09.20264.4WordPress Core <= 7.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Custom Header Image Data CVSS 4.4 · 17.09.20264.3WordPress Core <= 7.1 - Authenticated (Contributor+) Path Traversal via REST Templates Controller CVSS 4.3 · 17.09.20264.3WordPress Core <= 7.1 - Forced Theme Install/Preview and Selector Injection via Theme Installer Route CVSS 4.3 · 17.09.20264.3WordPress Core <= 7.1 - Authenticated (Author+) Information Exposure via attachment_submitbox_metadata() CVSS 4.3 · 17.09.20267.2WordPress Core <= 7.1 - Unauthenticated Stored Cross-Site Scripting via wpautop() Blockquote Handling CVSS 7.2 · 17.09.20265.5WordPress Core <= 7.1 - Missing Authorization to customize_changeset Write via XML-RPC (Multisite/Custom Role edit_css Bypass) CVSS 5.5 · 17.09.20262.7WordPress Core <= 7.1 - Authenticated (Administrator+) Missing Authorization to Network Plugin Activation (Multisite) CVSS 2.7 · 17.09.20264.3WordPress Core <= 7.1 - Authenticated (Contributor+) Insecure Direct Object Reference to Arbitrary Post Overwrite CVSS 4.3 · 17.09.20264.3WordPress Core <= 7.1 - Authenticated (Author+) Missing Authorization to Comment/Note Reparenting via REST API CVSS 4.3 · 17.09.20264.3WordPress Core <= 7.1 - Authenticated (Contributor+) Information Exposure via Sample Permalink AJAX Actions CVSS 4.3 · 17.09.202607.10.20263.3WordPress Core 4.7.0 - 7.1.2 - Conditional Action Hook Injection via Unregistered Post Status or Post Type CVSS 3.3 · 07.10.20264.3WordPress Core 4.7.0 - 7.1.2 - Authenticated (Contributor+) Denial of Service via Block Editor URL Details CVSS 4.3 · 07.10.20264.3WordPress Core 4.7.0 - 7.1.2 - Authenticated (Author+) Unauthorized Sticky Post Modification via REST API CVSS 4.3 · 07.10.20265.3WordPress Core 4.7.0 - 7.1.2 - Unauthenticated Sensitive Information Exposure via Comment Feeds CVSS 5.3 · 07.10.20266.4WordPress Core 4.7.0 - 7.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Imgur oEmbed CVSS 6.4 · 07.10.2026

Strategic Overview

Avg CVSSMedium
4.6/ 10
Patch Coverage100%
Open

0

Fixed

16

Get automatic notifications for all WordPress 6.4.12 vulnerabilities before they are exploited.

Highest severity on recordCVSS 7.2CVE-2026-93485

WordPress Core <= 7.1 - Unauthenticated Stored Cross-Site Scripting via wpautop() Blockquote Handling

Read the full analysis

Vulnerability Records

16 records
2026-10-07 00:00
WordPress Core 4.7.0 - 7.1.2 - Conditional Action Hook Injection via Unregistered Post Status or Post Type
WordPress 6.4.12
4.7.0 – 7.1.2 · 25 branches
N/A
3.3
Low
Alex ConchaYes
2026-10-07 00:00
WordPress Core 4.7.0 - 7.1.2 - Authenticated (Contributor+) Denial of Service via Block Editor URL Details
WordPress 6.4.12
4.7.0 – 7.1.2 · 25 branches
N/A
4.3
Medium
AnthropicYes
2026-10-07 00:00
WordPress Core 4.7.0 - 7.1.2 - Authenticated (Author+) Unauthorized Sticky Post Modification via REST API
WordPress 6.4.12
4.7.0 – 7.1.2 · 25 branches
N/A
4.3
Medium
AnthropicYes
2026-10-07 00:00
WordPress Core 4.7.0 - 7.1.2 - Unauthenticated Sensitive Information Exposure via Comment Feeds
WordPress 6.4.12
4.7.0 – 7.1.2 · 25 branches
CVE-2026-66666
5.3
Medium
Ananda DhakalYes
2026-10-07 00:00
WordPress Core 4.7.0 - 7.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Imgur oEmbed
WordPress 6.4.12
4.7.0 – 7.1.2 · 25 branches
N/A
6.4
Medium
Zhengyu LiuYes
2026-09-17 00:00
WordPress Core <= 7.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Custom Header Image Data
WordPress 6.4.12
6.6.7 – 7.1 · 6 branches
N/A
4.4
Medium
Jeremy FeltYes
2026-09-17 00:00
WordPress Core <= 7.1 - Authenticated (Contributor+) Path Traversal via REST Templates Controller
WordPress 6.4.12
5.8 – 7.1 · 6 branches
N/A
4.3
Medium
AnthropicYes
2026-09-17 00:00
WordPress Core <= 7.1 - Forced Theme Install/Preview and Selector Injection via Theme Installer Route
WordPress 6.4.12
6.6.7 – 7.1 · 6 branches
N/A
4.3
Medium
Paulos YibeloYes
2026-09-17 00:00
WordPress Core <= 7.1 - Authenticated (Author+) Information Exposure via attachment_submitbox_metadata()
WordPress 6.4.12
6.6.7 – 7.1 · 6 branches
N/A
4.3
Medium
HDWSecYes
2026-09-17 00:00
WordPress Core <= 7.1 - Unauthenticated Stored Cross-Site Scripting via wpautop() Blockquote Handling
WordPress 6.4.12
6.6.7 – 7.1 · 6 branches
CVE-2026-93485
7.2
High
Rafie MuhammadYes
Showing 1–10 of 16 reports

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