{"id":59609,"date":"2025-07-24T12:00:14","date_gmt":"2025-07-24T12:00:14","guid":{"rendered":""},"modified":"2025-09-08T17:18:42","modified_gmt":"2025-09-08T23:18:42","slug":"cve-2025-26855-sql-injection-vulnerability-in-joomla-s-articles-calendar-extension","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-26855-sql-injection-vulnerability-in-joomla-s-articles-calendar-extension\/","title":{"rendered":"<strong>CVE-2025-26855: SQL Injection Vulnerability in Joomla&#8217;s Articles Calendar Extension<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the ever-evolving landscape of cybersecurity, new vulnerabilities continue to emerge, posing significant threats to both individual users and large-scale organizations. One such vulnerability, CVE-2025-26855, has been identified in the Joomla content management system&#8217;s Articles Calendar extension. Specifically, versions 1.0.0 to 1.0.1.0007 of the extension are susceptible to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4784-critical-sql-injection-vulnerability-in-moderec-tourtella\/\"  data-wpil-monitor-id=\"68431\">SQL injection<\/a> attacks, which can potentially lead to system compromise or data leakage. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47998-severe-heap-based-buffer-overflow-vulnerability-in-windows-routing-and-remote-access-service\/\"  data-wpil-monitor-id=\"67591\">vulnerability carries a high severity<\/a> rating, making it a critical area of focus for anyone using the affected extension.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-26855<br \/>\nSeverity: Critical (CVSS: 9.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: System compromise, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53495-unauthorized-access-data-leakage-in-wikimedia-foundation-mediawiki-abusefilter-extension\/\"  data-wpil-monitor-id=\"72518\">data leakage<\/a><\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3239200194\" 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>Articles Calendar extension for Joomla | 1.0.0 &#8211; 1.0.1.0007<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of a flaw in the Articles Calendar extension for Joomla, which fails to properly sanitize user inputs in SQL queries. This allows an attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54444-unrestricted-file-upload-leading-to-code-injection-in-samsung-electronics-magicinfo-9-server\/\"  data-wpil-monitor-id=\"67592\">inject malicious SQL code<\/a> into the application, which can then be executed by the database management system. This could potentially <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41668-critical-file-replacement-leading-to-unauthorized-access\/\"  data-wpil-monitor-id=\"67593\">lead to unauthorized<\/a> access to sensitive data, manipulation of said data, or even complete control over the affected system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-91036035\" 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 high-level conceptual example of how this type of SQL <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54451-code-injection-vulnerability-in-samsung-electronics-magicinfo-9-server\/\"  data-wpil-monitor-id=\"67590\">injection vulnerability<\/a> could be exploited:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/index.php?option=com_articlescalendar&amp;view=articlescalendar HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nid=1 UNION SELECT 1,username,password FROM #__users<\/code><\/pre>\n<p>In this example, the malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8715-arbitrary-code-and-sql-injection-vulnerability-in-postgresql\/\"  data-wpil-monitor-id=\"78771\">SQL code<\/a> (1 UNION SELECT 1,username,password FROM #__users) is injected into the &#8216;id&#8217; parameter of the POST request. This results in the execution of an additional SQL query, which could potentially retrieve sensitive <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50738-memos-application-vulnerability-allows-for-unauthorized-user-information-disclosure\/\"  data-wpil-monitor-id=\"72519\">user information<\/a> from the database.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>To mitigate this vulnerability, users are advised to apply the vendor&#8217;s patch as soon as possible. In the absence of a patch or until one can be applied, users may consider using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary mitigation measure. These tools can help to detect and block <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8714-critical-postgresql-vulnerability-allowing-malicious-code-injection-by-superusers\/\"  data-wpil-monitor-id=\"80670\">malicious SQL code<\/a>, thereby preventing exploitation of this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the ever-evolving landscape of cybersecurity, new vulnerabilities continue to emerge, posing significant threats to both individual users and large-scale organizations. One such vulnerability, CVE-2025-26855, has been identified in the Joomla content management system&#8217;s Articles Calendar extension. Specifically, versions 1.0.0 to 1.0.1.0007 of the extension are susceptible to SQL injection attacks, which can potentially [&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":[74],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59609","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-sql-injection"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59609","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=59609"}],"version-history":[{"count":5,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59609\/revisions"}],"predecessor-version":[{"id":73099,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59609\/revisions\/73099"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=59609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=59609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=59609"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=59609"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=59609"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=59609"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=59609"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=59609"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=59609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}