{"id":115176,"date":"2026-10-26T15:18:26","date_gmt":"2026-10-26T14:18:26","guid":{"rendered":"https:\/\/blog.mailfence.com\/vulnerabilidade-php2shell-sua-conta-do-mailfence-esta-segura\/"},"modified":"2026-10-27T12:07:37","modified_gmt":"2026-10-27T11:07:37","slug":"vulnerabilidade-php2shell-mailfence-segura","status":"publish","type":"post","link":"https:\/\/blog.mailfence.com\/pt\/vulnerabilidade-php2shell-mailfence-segura\/","title":{"rendered":"Vulnerabilidade PHP2Shell: sua conta do Mailfence est\u00e1 segura"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" id=\"h-\">Duas vulnerabilidades graves do PHP abalaram a internet na semana passada. Conhecidas como \u201cPHP2Shell\u201d, as vulnerabilidades CVE-2026-109618 e CVE-2026-109619 permitem que invasores executem c\u00f3digo em servidores web sem nem mesmo precisar fazer login.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se voc\u00ea viu as not\u00edcias, provavelmente est\u00e1 se perguntando se seu e-mail est\u00e1 seguro.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Sua conta do Mailfence n\u00e3o foi afetada.<\/strong> Seu e-mail, documentos, agenda e contatos continuam totalmente protegidos. Veja aqui o que aconteceu e por que voc\u00ea pode continuar usando o Mailfence normalmente.<\/p>\n\n\n\n<h2 id=\"h-o-que-e-o-php2shell\" class=\"wp-block-heading\">O que \u00e9 o PHP2Shell?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PHP2Shell se refere a duas falhas cr\u00edticas de seguran\u00e7a (CVE-2026-109618 e CVE-2026-109619) no PHP<\/strong>, a linguagem de programa\u00e7\u00e3o que alimenta cerca de 75% de todos os sites.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O <a href=\"https:\/\/www.php.net\/\">projeto PHP lan\u00e7ou patches<\/a> em 21 de outubro de 2026. Mas <a href=\"https:\/\/watchtowr.com\/intelligence\/php-remote-code-execution-php2shell\/\">a watchTowr confirmou que a vulnerabilidade j\u00e1 estava sendo explorada<\/a> naquele mesmo dia, com tentativas que remontam a 17 de outubro.<\/p>\n\n\n\n<h2 id=\"h-por-que-o-php2shell-nao-afeta-o-mailfence\" class=\"wp-block-heading\">Por que o PHP2Shell n\u00e3o afeta o Mailfence?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">E aqui est\u00e1 o que te deixa tranquilo: <strong>o Mailfence n\u00e3o usa PHP no seu servi\u00e7o.<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Como o PHP2Shell tem como alvo especificamente ambientes de servidor PHP, essa rota de ataque simplesmente n\u00e3o existe nos nossos sistemas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>O n\u00facleo de execu\u00e7\u00e3o do PHP n\u00e3o faz parte do nosso conjunto de tecnologias \u2014 por isso, seus dados do Mailfence nunca ficaram expostos a essas vulnerabilidades.<\/strong><\/p>\n\n\n\n<h2 id=\"h-como-reagimos\" class=\"wp-block-heading\">Como reagimos<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Mesmo que nossos sistemas n\u00e3o estejam diretamente vulner\u00e1veis, levamos a s\u00e9rio qualquer incidente de seguran\u00e7a grave.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nossa equipe de seguran\u00e7a revisou todos os sistemas assim que a informa\u00e7\u00e3o veio a p\u00fablico.<\/strong> Isso incluiu uma auditoria completa dos servi\u00e7os auxiliares e das depend\u00eancias de terceiros.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No nosso blog e nas p\u00e1ginas da base de conhecimento, que ficam vis\u00edveis ao p\u00fablico, <strong>nosso provedor de hospedagem j\u00e1 tinha instalado patches de prote\u00e7\u00e3o antes mesmo das atualiza\u00e7\u00f5es oficiais serem lan\u00e7adas.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Em nenhum momento as contas do Mailfence ou os dados dos usu\u00e1rios estiveram em risco.<\/strong> Continuamos acompanhando de perto o desenrolar dos acontecimentos.<\/p>\n\n\n\n<h2 id=\"h-o-que-voce-deve-fazer\" class=\"wp-block-heading\">O que voc\u00ea deve fazer?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Se voc\u00ea usa o Mailfence como seu servi\u00e7o de e-mail, n\u00e3o precisa fazer nada. Sua conta est\u00e1 segura.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No entanto, <strong>o PHP2Shell pode afetar outros servi\u00e7os que voc\u00ea usa.<\/strong> Plataformas auto-hospedadas, sites do WordPress e aplicativos web que rodam PHP est\u00e3o todos potencialmente vulner\u00e1veis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aqui vai o que a gente recomenda:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Atualize imediatamente todos os servi\u00e7os baseados em PHP.<\/strong> Se voc\u00ea administra seus pr\u00f3prios sites ou aplicativos, atualize para a vers\u00e3o mais recente do PHP agora mesmo.<\/li>\n\n\n\n<li><strong>Fique de olho em e-mails de phishing.<\/strong> Vulnerabilidades graves costumam dar origem a campanhas de phishing que se passam por \u201catualiza\u00e7\u00f5es urgentes de seguran\u00e7a\u201d. N\u00e3o clique em links suspeitos.<\/li>\n\n\n\n<li><strong>Ative a autentica\u00e7\u00e3o de dois fatores.<\/strong> Se voc\u00ea ainda n\u00e3o ativou <a href=\"https:\/\/kb.mailfence.com\/pt\/kb\/configurar-2fa\/\" target=\"_blank\" rel=\"noreferrer noopener\">a 2FA na sua conta do Mailfence<\/a>, agora \u00e9 um \u00f3timo momento para fazer isso.<\/li>\n\n\n\n<li><strong>Use senhas fortes e diferentes para cada servi\u00e7o.<\/strong> Um gerenciador de senhas facilita isso. Se uma conta for invadida em outro lugar, seu e-mail do Mailfence continua seguro.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-por-que-a-arquitetura-do-seu-provedor-de-e-mail-e-importante\" class=\"wp-block-heading\">Por que a arquitetura do seu provedor de e-mail \u00e9 importante<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O PHP2Shell \u00e9 um forte lembrete de que <strong>o que rola nos bastidores do seu servi\u00e7o de e-mail \u00e9 extremamente importante.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Uma \u00fanica vulnerabilidade no PHP exp\u00f4s milh\u00f5es de sites e aplicativos da noite para o dia. As escolhas tecnol\u00f3gicas que o seu servi\u00e7o de e-mail fez anos atr\u00e1s de repente se tornam a diferen\u00e7a entre seguran\u00e7a e risco.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O Mailfence foi desenvolvido tendo a seguran\u00e7a como princ\u00edpio fundamental desde o in\u00edcio. Isso inclui:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Criptografia de ponta a ponta com OpenPGP<\/strong>: s\u00f3 voc\u00ea e o destinat\u00e1rio podem ler seus e-mails<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/blog.mailfence.com\/pt\/criptografia-em-repouso-o-que-e-e-como-o-mailfence-a-implementou\/\">Criptografia em repouso<\/a><\/strong> protegendo os dados armazenados nos nossos servidores<\/li>\n\n\n\n<li><strong>A lei de privacidade da B\u00e9lgica e a conformidade com o GDPR<\/strong>: sem publicidade, sem rastreamento, sem backdoors<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00favidas? Entre em contato conosco pelo e-mail support@mailfence.com.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Duas vulnerabilidades graves do PHP abalaram a internet na semana passada. Conhecidas como \u201cPHP2Shell\u201d, as vulnerabilidades CVE-2026-109618 e CVE-2026-109619 permitem que invasores executem c\u00f3digo em servidores web sem nem mesmo precisar fazer login. Se voc\u00ea viu as not\u00edcias, provavelmente est\u00e1 se perguntando se seu e-mail est\u00e1 seguro. Sua conta do Mailfence n\u00e3o foi afetada. Seu [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":115165,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18582,18572],"tags":[],"class_list":["post-115176","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias-do-mailfence","category-privacidade-on-line"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Vulnerabilidade PHP2Shell: sua conta do Mailfence est\u00e1 segura | Mailfence Blog<\/title>\n<meta name=\"description\" content=\"Duas vulnerabilidades graves do PHP, conhecidas como PHP2Shell, est\u00e3o sendo exploradas globalmente. 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