{"id":49434,"date":"2025-06-06T20:41:18","date_gmt":"2025-06-06T20:41:18","guid":{"rendered":""},"modified":"2025-08-31T18:38:10","modified_gmt":"2025-09-01T00:38:10","slug":"cve-2025-49113-critical-vulnerability-in-roundcube-webmail-allows-remote-code-execution","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-49113-critical-vulnerability-in-roundcube-webmail-allows-remote-code-execution\/","title":{"rendered":"<strong>CVE-2025-49113: Critical Vulnerability in Roundcube Webmail Allows Remote Code Execution<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity world is in a state of high alert due to the discovery of a critical vulnerability, dubbed CVE-2025-49113, in Roundcube Webmail. This vulnerability affects versions before 1.5.10 and 1.6.x before 1.6.11. The flaw allows an authenticated user to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48828-arbitrary-php-code-execution-in-vbulletin-via-template-conditionals\/\"  data-wpil-monitor-id=\"55711\">execute remote code<\/a>, presenting a significant threat to system integrity and data security. In an era where email communication forms a significant part of organizational operations, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4601-privilege-escalation-vulnerability-in-rh-real-estate-wordpress-theme\/\"  data-wpil-monitor-id=\"60692\">vulnerability presents real<\/a> and imminent danger. The high CVSS Severity Score of 9.9 underpins its seriousness and highlights the immediate action required.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-49113<br \/>\nSeverity: Critical (9.9 out of 10)<br \/>\nAttack Vector: Web-based (HTTP)<br \/>\nPrivileges Required: User level<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41651-critical-system-compromise-due-to-missing-authentication\/\"  data-wpil-monitor-id=\"56044\">System Compromise<\/a>, Potential Data Leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1829310427\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>Roundcube Webmail | Before 1.5.10<br \/>\nRoundcube Webmail | 1.6.x before 1.6.11<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-34711-improper-uri-validation-vulnerability-in-geoserver\/\"  data-wpil-monitor-id=\"60412\">vulnerability stems from the lack of validation<\/a> of the `_from` parameter in a URL in `program\/actions\/settings\/upload.php`. As a result, it allows PHP Object Deserialization, which, in turn, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41654-snmp-protocol-vulnerability-enables-unauthenticated-remote-access\/\"  data-wpil-monitor-id=\"55605\">enables remote<\/a> code execution. An attacker with user-level privileges can exploit this loophole to manipulate serialized objects, leading to the unintended <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3357-arbitrary-code-execution-vulnerability-in-ibm-tivoli-monitoring\/\"  data-wpil-monitor-id=\"56392\">execution of malicious code<\/a>. This can compromise the system and potentially lead to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48383-django-select2-vulnerability-risking-data-leakage-and-unauthorized-access\/\"  data-wpil-monitor-id=\"56135\">data leakage<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2391328792\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>Here&#8217;s a conceptual example showcasing how the vulnerability might be exploited, using a malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5671-critical-buffer-overflow-vulnerability-in-totolink-n302r-plus-http-post-request-handler\/\"  data-wpil-monitor-id=\"59518\">HTTP POST request<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/program\/actions\/settings\/upload.php HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{\n&quot;_from&quot;: &quot;a:2:{i:0;O:8:\\&quot;stdClass\\&quot;:0:{}i:1;s:117:\\&quot;system(&#039;malicious_command&#039;);\\&quot;;}&quot;\n}<\/code><\/pre>\n<p>In this example, `malicious_command` represents the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41661-unauthenticated-remote-command-execution-vulnerability-due-to-csrf-in-main-web-interface\/\"  data-wpil-monitor-id=\"61149\">command that an attacker wants to execute<\/a> on the victim&#8217;s system. The string after `_from` is a serialized PHP object that, when deserialized, causes the `system` function to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5491-acer-controlcenter-remote-code-execution-vulnerability-potential-system-compromise\/\"  data-wpil-monitor-id=\"61222\">execute<\/a> the malicious command. This example serves purely for illustrative purposes and underscores the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32289-high-severity-php-remote-file-inclusion-vulnerability-in-apustheme-yozi\/\"  data-wpil-monitor-id=\"56042\">severity of the CVE-2025-49113 vulnerability<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Given the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31913-high-severity-php-remote-file-inclusion-vulnerability-in-apustheme-ogami\/\"  data-wpil-monitor-id=\"56076\">severity of this vulnerability<\/a>, it is highly recommended that users apply the vendor patch as soon as it is available. Before the patch is available or applied, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These systems can monitor and block suspicious activities, reducing the risk of a successful exploit. However, they cannot wholly eliminate the risk, and applying the patch should be the primary action. The overall emphasis should be on proactive cybersecurity hygiene, including regular software updates, to maintain system <a href=\"https:\/\/www.ameeba.com\/blog\/enhancing-cybersecurity-integrating-human-risk-management-with-security-awareness-training\/\"  data-wpil-monitor-id=\"56043\">integrity and data security<\/a>.<br \/>\nIn conclusion, CVE-2025-49113 is a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5280-a-high-severity-heap-corruption-vulnerability-in-google-chrome-v8\/\"  data-wpil-monitor-id=\"56195\">severe vulnerability<\/a> in Roundcube Webmail that requires immediate attention and action. It underscores the importance of thorough input validation and the potential risks associated with <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27528-deserialization-of-untrusted-data-vulnerability-in-apache-inlong\/\"  data-wpil-monitor-id=\"56173\">deserialization of untrusted data<\/a>. It also serves as a reminder that cybersecurity is an ever-evolving landscape, and staying updated is key to maintaining a strong <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20217-denial-of-service-vulnerability-in-snort-3-detection-engine-of-cisco-secure-firewall-threat-defense-software\/\"  data-wpil-monitor-id=\"77071\">defense against threats<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity world is in a state of high alert due to the discovery of a critical vulnerability, dubbed CVE-2025-49113, in Roundcube Webmail. This vulnerability affects versions before 1.5.10 and 1.6.x before 1.6.11. The flaw allows an authenticated user to execute remote code, presenting a significant threat to system integrity and data security. In [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-49434","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49434","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=49434"}],"version-history":[{"count":14,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49434\/revisions"}],"predecessor-version":[{"id":69452,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49434\/revisions\/69452"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=49434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=49434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=49434"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=49434"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=49434"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=49434"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=49434"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=49434"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=49434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}