WordPress 4.2.20 Vulnerabilities

Version released on 2018-04-03
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2019-12-13 WordPress <= 5.3 - Improper Access Controls in REST API fixed in version 4.2.26
2019-12-13 WordPress <= 5.3 - Stored XSS via Crafted Links fixed in version 4.2.26
2019-12-13 WordPress <= 5.3 - Stored XSS via Block Editor Content fixed in version 4.2.26
2019-12-13 WordPress <= 5.3 - wp_kses_bad_protocol() Colon Bypass fixed in version 4.2.26
2019-10-14 WordPress <= 5.2.3 - Stored XSS in Customizer fixed in version 4.2.25
2019-10-14 WordPress <= 5.2.3 - Unauthenticated View Private/Draft Posts fixed in version 4.2.25
2019-10-14 WordPress <= 5.2.3 - Stored XSS in Style Tags fixed in version 4.2.25
2019-10-14 WordPress <= 5.2.3 - JSON Request Cache Poisoning fixed in version 4.2.25
2019-10-14 WordPress <= 5.2.3 - Server-Side Request Forgery (SSRF) in URL Validation fixed in version 4.2.25
2019-10-14 WordPress <= 5.2.3 - Admin Referrer Validation fixed in version 4.2.25
2019-09-05 WordPress <= 5.2.2 - Cross-Site Scripting (XSS) in URL Sanitisation fixed in version 4.2.24
2019-03-13 WordPress 3.9-5.1 - Comment Cross-Site Scripting (XSS) fixed in version 4.2.23
2019-02-19 WordPress 3.7-5.0 (except 4.9.9) - Authenticated Code Execution fixed in version 5.0.1
2018-12-13 WordPress <= 5.0 - Authenticated File Delete fixed in version 4.2.22
2018-12-13 WordPress <= 5.0 - Authenticated Post Type Bypass fixed in version 4.2.22
2018-12-13 WordPress <= 5.0 - PHP Object Injection via Meta Data fixed in version 4.2.22
2018-12-13 WordPress <= 5.0 - Authenticated Cross-Site Scripting (XSS) fixed in version 4.2.22
2018-12-13 WordPress <= 5.0 - Cross-Site Scripting (XSS) that could affect plugins fixed in version 4.2.22
2018-12-13 WordPress <= 5.0 - User Activation Screen Search Engine Indexing fixed in version 4.2.22
2018-12-13 WordPress <= 5.0 - File Upload to XSS on Apache Web Servers fixed in version 4.2.22
2018-06-27 WordPress <= 4.9.6 - Authenticated Arbitrary File Deletion fixed in version 4.2.21