WordPress 4.9.26

WordPress 4.9.26 has 9 disclosed vulnerabilities in the WordSec catalog, reported between 2012 and 2025; all 9 are fixed as of August 2026. Their average CVSS score is 5.9, and the most serious one scores 8.1 out of 10. Severity breakdown: 0 critical and 2 high. 2025 was the busiest year with 2 disclosures.

The most common weakness is Cross-Site Scripting, behind 2 of the records (22%). Other recurring categories include Exposure Of Sensitive Information To An Unauthorized Actor, Insufficient Verification Of Data Authenticity.

Every one of the 9 issues recorded for WordPress 4.9.26 has a vendor fix available, so running the current release closes all known holes.

7 independent researchers contributed these findings, one record each.

Strategic Overview

Avg CVSSMedium
5.9/ 10
Patch Coverage100%
Open

0

Fixed

9

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Highest severity on recordCVSS 8.1CVE-2021-44223

WordPress Core < 5.8 - Dependency Confusion

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