{"id":104,"date":"2026-07-16T09:00:00","date_gmt":"2026-07-16T09:00:00","guid":{"rendered":"https:\/\/team-web-hosting.example\/?p=104"},"modified":"2026-07-16T09:00:00","modified_gmt":"2026-07-16T09:00:00","slug":"securiser-site-wordpress-fondamentaux","status":"publish","type":"post","link":"https:\/\/webhostingproduct.ovh\/?p=104","title":{"rendered":"S\u00e9curiser un site WordPress : les fondamentaux"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"\/MEDIA_BASE_URL\/securiser-site-wordpress-fondamentaux.png\" alt=\"Illustration \u2014 S\u00e9curiser un site WordPress : les fondamentaux\"\/><\/figure>\n\n<p>La popularit\u00e9 de WordPress en fait une cible privil\u00e9gi\u00e9e. La bonne nouvelle : la grande majorit\u00e9 des attaques exploitent des failles connues et \u00e9vitables. Quelques fondamentaux appliqu\u00e9s s\u00e9rieusement suffisent \u00e0 \u00e9carter l&rsquo;essentiel du risque.<\/p>\n\n<h2>Maintenir \u00e0 jour, en priorit\u00e9<\/h2>\n<p>Le c\u0153ur de WordPress, les th\u00e8mes et les extensions doivent rester \u00e0 jour. La plupart des compromissions viennent d&rsquo;un composant obsol\u00e8te dont la faille est publiquement document\u00e9e. Automatisez les mises \u00e0 jour de s\u00e9curit\u00e9 et supprimez les extensions inutilis\u00e9es : chaque composant install\u00e9 \u00e9largit la surface d&rsquo;attaque.<\/p>\n\n<h2>Renforcer l&rsquo;authentification<\/h2>\n<ul>\n<li>Bannissez les identifiants par d\u00e9faut comme \u00ab admin \u00bb.<\/li>\n<li>Imposez des mots de passe longs et uniques.<\/li>\n<li>Activez l&rsquo;authentification \u00e0 deux facteurs sur les comptes administrateurs.<\/li>\n<li>Limitez le nombre de tentatives de connexion pour contrer les attaques par force brute.<\/li>\n<\/ul>\n\n<h2>G\u00e9rer les droits avec parcimonie<\/h2>\n<p>Appliquez le principe du moindre privil\u00e8ge : chaque utilisateur ne dispose que des droits n\u00e9cessaires \u00e0 sa t\u00e2che. Un r\u00e9dacteur n&rsquo;a pas besoin d&rsquo;un acc\u00e8s administrateur. Cela limite les d\u00e9g\u00e2ts si un compte est compromis.<\/p>\n\n<h2>Chiffrement et pare-feu applicatif<\/h2>\n<p>Le HTTPS n&rsquo;est plus optionnel : il chiffre les \u00e9changes et rassure les visiteurs. Un pare-feu applicatif web (WAF) filtre en amont les requ\u00eates malveillantes \u2014 injections SQL, tentatives d&rsquo;exploitation \u2014 avant qu&rsquo;elles n&rsquo;atteignent votre site. Beaucoup d&rsquo;h\u00e9bergements manag\u00e9s l&rsquo;int\u00e8grent nativement.<\/p>\n\n<h2>Sauvegardes : le dernier rempart<\/h2>\n<p>Aucune protection n&rsquo;est absolue. Des sauvegardes automatiques, r\u00e9guli\u00e8res et test\u00e9es vous permettent de restaurer un site sain en cas d&rsquo;incident. V\u00e9rifiez r\u00e9guli\u00e8rement que la restauration fonctionne r\u00e9ellement : une sauvegarde jamais test\u00e9e n&rsquo;est qu&rsquo;une hypoth\u00e8se.<\/p>\n\n<h2>D\u00e9l\u00e9guer ce qui peut l&rsquo;\u00eatre<\/h2>\n<p>Sur un h\u00e9bergement WordPress manag\u00e9, une partie de ces mesures \u2014 mises \u00e0 jour, WAF, sauvegardes, surveillance \u2014 est appliqu\u00e9e par d\u00e9faut. C&rsquo;est l&rsquo;un des arguments forts du manag\u00e9 : la s\u00e9curit\u00e9 devient une propri\u00e9t\u00e9 de l&rsquo;infrastructure plut\u00f4t qu&rsquo;une checklist \u00e0 tenir soi-m\u00eame. Chez OVHcloud, cette approche s&rsquo;accompagne d&rsquo;un h\u00e9bergement des donn\u00e9es en Europe, soumis au RGPD.<\/p>","protected":false},"excerpt":{"rendered":"<p>Mots de passe, mises \u00e0 jour, droits d&rsquo;acc\u00e8s, pare-feu applicatif : les mesures essentielles qui bloquent la grande majorit\u00e9 des attaques contre WordPress.<\/p>\n","protected":false},"author":1,"featured_media":1104,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2],"tags":[],"class_list":["post-104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hebergement-wordpress"],"_links":{"self":[{"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/posts\/104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=104"}],"version-history":[{"count":0,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=\/wp\/v2\/posts\/104\/revisions"}],"wp:attachment":[{"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webhostingproduct.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}