{"id":51205,"date":"2025-06-12T10:33:32","date_gmt":"2025-06-12T10:33:32","guid":{"rendered":""},"modified":"2025-10-03T14:18:51","modified_gmt":"2025-10-03T20:18:51","slug":"cve-2025-48911-improper-permission-assignment-vulnerability-in-note-sharing-modules","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-48911-improper-permission-assignment-vulnerability-in-note-sharing-modules\/","title":{"rendered":"<strong>CVE-2025-48911: Improper Permission Assignment Vulnerability in Note Sharing Modules<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>Cybersecurity is a constant race against time and criminals. In our interconnected world, the security of one&#8217;s information is paramount. This blog <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39358-critical-deserialization-of-untrusted-data-vulnerability-in-teastudio-pl-wp-posts-carousel\/\"  data-wpil-monitor-id=\"59898\">post discusses a new vulnerability<\/a> with the ID CVE-2025-48911, which poses a significant threat to the security of note sharing modules. Specifically, it involves an improper permission assignment that could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2021-47668-linux-kernel-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"57535\">potentially lead to system compromise or data<\/a> leakage if exploited. This vulnerability not only affects the users and the data they <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46584-improper-authentication-logic-vulnerability-in-file-system-module\/\"  data-wpil-monitor-id=\"57963\">share<\/a> but also the overall trustworthiness of digital communication systems. It is a reminder of why constant vigilance and prompt action are important in the cybersecurity landscape.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-48911<br \/>\nSeverity: High (CVSS score 8.2)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45565-memory-corruption-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"58049\">System compromise and potential data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2196265324\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p>Note Sharing App | Version 3.1 to 3.5<br \/>\nProductivity <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-51055-insecure-data-storage-vulnerability-in-vedo-suite-version-2024-17\/\"  data-wpil-monitor-id=\"81593\">Suite | Version<\/a> 5.0 to 5.3<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3260-security-vulnerability-in-grafana-api-endpoints-leading-to-permission-bypass\/\"  data-wpil-monitor-id=\"57649\">vulnerability arises due to an oversight in the permission<\/a> assignment within the note sharing module. When a user shares a note, the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43595-insecure-file-system-permissions-vulnerability-in-msp360-backup\/\"  data-wpil-monitor-id=\"58076\">system inappropriately grants elevated permissions<\/a> to the recipient. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7734-critical-gitlab-ce-ee-vulnerability-allows-unauthorized-actions-by-attackers\/\"  data-wpil-monitor-id=\"79537\">allows the recipient to perform actions<\/a> outside the intended scope, such as modifying the note or accessing other notes not shared with them. An attacker can exploit this vulnerability by sending specially crafted requests to the note sharing module, consequently gaining <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48881-unauthorized-access-and-modification-vulnerability-in-valtimo-business-process-automation\/\"  data-wpil-monitor-id=\"57401\">unauthorized access<\/a> or control over the system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-622336084\" 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>Below is a conceptual example of how the vulnerability might be exploited. Please note that this is purely hypothetical and is intended to give a basic understanding of the vulnerability.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/note\/share HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;note_id&quot;: &quot;123&quot;, &quot;recipient&quot;: &quot;attacker@example.com&quot;, &quot;permissions&quot;: &quot;admin&quot; }<\/code><\/pre>\n<p>In this example, the attacker crafts a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7812-critical-cross-site-request-forgery-vulnerability-in-video-share-vod-wordpress-plugin\/\"  data-wpil-monitor-id=\"88555\">request to share<\/a> a note but includes an &#8220;admin&#8221; permission in the request. The system, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-37838-use-after-free-vulnerability-in-linux-kernel-s-ssi-protocol-driver-due-to-race-condition\/\"  data-wpil-monitor-id=\"57723\">due to the vulnerability<\/a>, accepts and assigns the inappropriate permissions, providing the attacker with elevated access.<\/p>\n<p><strong>Recommendations for Mitigation<\/strong><\/p>\n<p>To mitigate this vulnerability, users are advised to apply the latest patches provided by the vendor. If a patch is not yet available, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as a temporary mitigation method. These can be configured to detect and block <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48921-cross-site-request-forgery-vulnerability-in-drupal-open-social\/\"  data-wpil-monitor-id=\"65043\">requests that attempt to exploit this vulnerability<\/a>. As always, users are urged to regularly update their software to the latest <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48477-critical-vulnerability-in-freescout-prior-to-version-1-8-180\/\"  data-wpil-monitor-id=\"57823\">versions to protect from such vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview Cybersecurity is a constant race against time and criminals. In our interconnected world, the security of one&#8217;s information is paramount. This blog post discusses a new vulnerability with the ID CVE-2025-48911, which poses a significant threat to the security of note sharing modules. Specifically, it involves an improper permission assignment that could potentially lead [&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-51205","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\/51205","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=51205"}],"version-history":[{"count":13,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51205\/revisions"}],"predecessor-version":[{"id":81363,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51205\/revisions\/81363"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=51205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=51205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=51205"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=51205"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=51205"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=51205"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=51205"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=51205"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=51205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}