{"id":42762,"date":"2025-05-22T23:12:54","date_gmt":"2025-05-22T23:12:54","guid":{"rendered":""},"modified":"2025-09-15T11:36:16","modified_gmt":"2025-09-15T17:36:16","slug":"cve-2025-47275-session-cookie-vulnerability-in-auth0-php-sdk","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-47275-session-cookie-vulnerability-in-auth0-php-sdk\/","title":{"rendered":"<strong>CVE-2025-47275: Session Cookie Vulnerability in Auth0-PHP SDK<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2025-47275 vulnerability reveals a significant security flaw in the Auth0-PHP SDK, which provides the PHP Software Development Kit for Auth0 Authentication and Management APIs. This vulnerability, which exists in versions 8.0.0-BETA1 to 8.14.0, can lead to unauthorized access due to brute force attacks on session cookies&#8217; authentication tags. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47945-critical-vulnerability-in-donetick-task-management-application-allows-full-account-takeover\/\"  data-wpil-monitor-id=\"51710\">vulnerability primarily affects applications<\/a> using the Auth0-PHP SDK, including those utilizing Auth0\/symfony, Auth0\/laravel-auth0, and Auth0\/wordpress SDKs that are configured with CookieStore. The severity of this vulnerability underscores the importance of <a href=\"https:\/\/www.ameeba.com\/blog\/escalating-cybersecurity-threats-to-healthcare-providers-hscc-urges-immediate-action\/\"  data-wpil-monitor-id=\"48563\">cybersecurity vigilance and the need for immediate<\/a> attention and mitigation.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-47275<br \/>\nSeverity: Critical (9.1 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: Unauthorized access, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27891-samsung-mobile-and-wearable-processors-vulnerability-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"49322\">potential system<\/a> compromise or data leakage.<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-944441827\" 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>Auth0-PHP SDK | 8.0.0-BETA1 to 8.14.0<br \/>\nAuth0\/symfony | All versions relying on Auth0-PHP SDK<br \/>\nAuth0\/laravel-auth0 | All versions relying on Auth0-PHP SDK<br \/>\nAuth0\/wordpress | All versions relying on Auth0-PHP SDK<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22462-authentication-bypass-vulnerability-in-ivanti-neurons-for-itsm\/\"  data-wpil-monitor-id=\"48562\">vulnerability leverages the weakness in the authentication<\/a> tags of session cookies used by the affected SDKs. An attacker can use a brute force method to guess these authentication tags, thus gaining <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45746-unauthorized-system-access-via-hardcoded-jwt-secret-in-zkt-zkbio-cvsecurity\/\"  data-wpil-monitor-id=\"48920\">unauthorized access to the system<\/a> or application. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41645-unauthenticated-remote-attacker-hijacking-via-demo-account\/\"  data-wpil-monitor-id=\"49978\">attack can be carried out remotely<\/a> and does not require any user interaction or special privileges.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1243704047\" 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>This is a simplified, conceptual example of how an attack might be carried out. In this scenario, an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3755-unauthenticated-remote-attack-on-mitsubishi-electric-melsec-iq-f-series-cpu-modules\/\"  data-wpil-monitor-id=\"58366\">attacker sends a series<\/a> of requests with different session cookies until the correct authentication tag is hit:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/api\/endpoint HTTP\/1.1\nHost: target.example.com\nCookie: sessionid=attackers_generated_cookie\n{ &quot;payload&quot;: &quot;...&quot; }<\/code><\/pre>\n<p>In the above example, `attackers_generated_cookie` would be iteratively updated with a series of potential session cookies until the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43564-improper-access-control-vulnerability-in-coldfusion-leading-to-arbitrary-file-system-read\/\"  data-wpil-monitor-id=\"49386\">system is fooled into granting access<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, users are advised to immediately upgrade to Auth0\/Auth0-PHP v8.14.0 or later, which includes a patch for this issue. Furthermore, as an extra precaution, it is recommended to rotate cookie <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55619-hardcoded-encryption-key-vulnerability-in-reolink-v4-54-0-4-20250526\/\"  data-wpil-monitor-id=\"82660\">encryption keys<\/a> regularly. In the interim, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2025-47275 vulnerability reveals a significant security flaw in the Auth0-PHP SDK, which provides the PHP Software Development Kit for Auth0 Authentication and Management APIs. This vulnerability, which exists in versions 8.0.0-BETA1 to 8.14.0, can lead to unauthorized access due to brute force attacks on session cookies&#8217; authentication tags. This vulnerability primarily affects applications [&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":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-42762","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/42762","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=42762"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/42762\/revisions"}],"predecessor-version":[{"id":75190,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/42762\/revisions\/75190"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=42762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=42762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=42762"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=42762"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=42762"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=42762"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=42762"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=42762"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=42762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}