WordPress 5.9.8
WordPress 5.9.8 has 8 disclosed vulnerabilities in the WordSec catalog, reported between 2012 and 2025; all 8 are fixed as of August 2026. Their average CVSS score is 5.4, and the most serious one scores 6.6 out of 10. 2024 was the busiest year with 4 disclosures.
The most common weakness is Cross-Site Scripting, behind 4 of the records (50%). Other recurring categories include Exposure Of Sensitive Information To An Unauthorized Actor, Path Traversal.
Every one of the 8 issues recorded for WordPress 5.9.8 has a vendor fix available, so running the current release closes all known holes.
7 independent researchers contributed these findings, one record each.
Highest severity on recordCVSS 6.6
CVE-2018-14028WordPress Core < 6.4.3 - Authenticated(Administrator+) PHP File Upload
Read the full analysisVulnerability Records
8 records
Showing 1–8 of 8 reports
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C