WordPress 4.1.38
WordPress 4.1.38 has 20 disclosed vulnerabilities in the WordSec catalog, reported between 2012 and 2025; all 20 are fixed as of August 2026. Their average CVSS score is 6.3, and the most serious one scores 8.8 out of 10. Severity breakdown: 0 critical and 6 high. 2016 was the busiest year with 6 disclosures.
The most common weakness is Cross-Site Request Forgery (CSRF), behind 2 of the records (10%). Other recurring categories include Cross-Site Scripting, Exposure Of Sensitive Information To An Unauthorized Actor.
Every one of the 20 issues recorded for WordPress 4.1.38 has a vendor fix available, so running the current release closes all known holes.
12 independent researchers contributed these findings, one record each.
CVE-2017-1000600WordPress Core < 4.9 - Insecure Deserialization
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