{"id":49330,"date":"2025-06-06T12:37:04","date_gmt":"2025-06-06T12:37:04","guid":{"rendered":""},"modified":"2025-09-12T00:48:16","modified_gmt":"2025-09-12T06:48:16","slug":"cve-2025-48477-critical-vulnerability-in-freescout-prior-to-version-1-8-180","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-48477-critical-vulnerability-in-freescout-prior-to-version-1-8-180\/","title":{"rendered":"CVE-2025-48477: Critical Vulnerability in FreeScout Prior to Version 1.8.180<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

In the world of software, security vulnerabilities are a common occurrence. One such vulnerability, identified as CVE-2025-48477, affects FreeScout, a free self-hosted help desk and shared mailbox. FreeScout has become a popular tool for many organizations due to its cost-effectiveness and ease of use. However, this vulnerability poses a significant risk<\/a>, potentially leading to system compromise or data leakage. If left unpatched, attackers can exploit<\/a> this flaw to change the attributes of a Mailbox object.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-48477
\nSeverity: High (8.1 CVSS Severity Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise<\/a> or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

FreeScout | Prior<\/a> to 1.8.180<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability arises due<\/a> to an improper sequence of actions required to implement a functional capability. The application allows<\/a> access to this functional capability without properly completing one or more actions in the sequence. As a result, an attacker can manipulate the attributes of a Mailbox object using the fill method. This could potentially lead to unauthorized system access<\/a> or data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here’s a conceptual example of how the vulnerability might be exploited<\/a>. This could be a sample HTTP request where the attacker sends a malicious payload to a vulnerable endpoint<\/a>.<\/p>\n

POST \/mailbox\/attributes HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"mailbox_attributes\": \"malicious_payload\" }<\/code><\/pre>\n
In this example, the attacker is sending a “mailbox_attributes” request with a malicious payload to the target server<\/a>. Since the application does not properly check the sequence of actions, it accepts and processes the request, leading to the manipulation of the Mailbox object’s<\/a> attributes.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Users of affected versions of FreeScout are strongly advised to upgrade to version 1.8.180 or later, which includes a patch for this vulnerability<\/a>. If for some reason an immediate upgrade is not feasible, using a web application firewall (WAF) or intrusion detection system (IDS) can serve as a temporary mitigation. It’s important to note that these are just temporary measures and won’t provide complete protection against potential exploits<\/a>. Therefore, upgrading to a patched version should be the primary course of action.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In the world of software, security vulnerabilities are a common occurrence. One such vulnerability, identified as CVE-2025-48477, affects FreeScout, a free self-hosted help desk and shared mailbox. FreeScout has become a popular tool for many organizations due to its cost-effectiveness and ease of use. However, this vulnerability poses a significant risk, potentially leading to […]<\/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,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-49330","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t