WordPress 4.9.33

WordPress 4.9.33 has 22 disclosed vulnerabilities in the WordSec catalog, reported between 2012 and 2026; 21 are fixed and 1 remains unpatched as of October 2026. Their average CVSS score is 5.1, and the most serious one scores 8.1 out of 10. Severity breakdown: 0 critical and 3 high. 2026 was the busiest year with 14 disclosures.

The most common weakness is Cross-Site Scripting, behind 3 of the records (14%). Other recurring categories include Exposure Of Sensitive Information To An Unauthorized Actor, Missing Authorization.

21 of the records (95%) have a vendor fix, while 1 remain unpatched. The oldest unresolved one dates back to 2022.

18 independent researchers contributed these findings, most of them (3) reported by Anthropic.

Strategic Overview

Avg CVSSMedium

5.1/ 10

Patch Coverage95%

Open

Fixed

Get automatic notifications for all WordPress 4.9.33 vulnerabilities before they are exploited.

Most severe open issueCVSS 4.0CVE-2022-3590

WordPress Core - All known versions - Unauthenticated Blind Server Side Request Forgery

Read the full analysis

Vulnerability Records

22 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 4.9.33 4.7.0 – 7.1.2 · 25 branches	`N/A`	3.3 Low	Alex Concha	Yes
2026-10-07 00:00	WordPress Core 4.7.0 - 7.1.2 - Authenticated (Contributor+) Denial of Service via Block Editor URL Details WordPress 4.9.33 4.7.0 – 7.1.2 · 25 branches	`N/A`	4.3 Medium	Anthropic	Yes
2026-10-07 00:00	WordPress Core 4.7.0 - 7.1.2 - Authenticated (Author+) Unauthorized Sticky Post Modification via REST API WordPress 4.9.33 4.7.0 – 7.1.2 · 25 branches	`N/A`	4.3 Medium	Anthropic	Yes
2026-10-07 00:00	WordPress Core 4.7.0 - 7.1.2 - Unauthenticated Sensitive Information Exposure via Comment Feeds WordPress 4.9.33 4.7.0 – 7.1.2 · 25 branches	`CVE-2026-66666`	5.3 Medium	Ananda Dhakal	Yes
2026-10-07 00:00	WordPress Core 4.7.0 - 7.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Imgur oEmbed WordPress 4.9.33 4.7.0 – 7.1.2 · 25 branches	`N/A`	6.4 Medium	Zhengyu Liu	Yes
2026-09-17 00:00	WordPress Core <= 7.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Custom Header Image Data WordPress 4.9.33 6.6.7 – 7.1 · 6 branches	`N/A`	4.4 Medium	Jeremy Felt	Yes
2026-09-17 00:00	WordPress Core <= 7.1 - Forced Theme Install/Preview and Selector Injection via Theme Installer Route WordPress 4.9.33 6.6.7 – 7.1 · 6 branches	`N/A`	4.3 Medium	Paulos Yibelo	Yes
2026-09-17 00:00	WordPress Core <= 7.1 - Authenticated (Author+) Information Exposure via attachment_submitbox_metadata() WordPress 4.9.33 6.6.7 – 7.1 · 6 branches	`N/A`	4.3 Medium	HDWSec	Yes
2026-09-17 00:00	WordPress Core <= 7.1 - Unauthenticated Stored Cross-Site Scripting via wpautop() Blockquote Handling WordPress 4.9.33 6.6.7 – 7.1 · 6 branches	`CVE-2026-93485`	7.2 High	Rafie Muhammad	Yes
2026-09-17 00:00	WordPress Core <= 7.1 - Missing Authorization to customize_changeset Write via XML-RPC (Multisite/Custom Role edit_css Bypass) WordPress 4.9.33 6.6.7 – 7.1 · 6 branches	`N/A`	5.5 Medium	Ben Bidner	Yes

Showing 1–10 of 22 reports