CVE-2026-53593

FreeScout prior to 1.8.224 is vulnerable to authenticated remote code execution due to an incomplete denylist for dangerous upload extensions. The upload endpoint POST /uploads/upload stores files with their original extension in storage/app/public/uploads/ and serves them at /storage/uploads/. O...

CVE-2026-53592

CVE-2026-53592 affects FreeScout (Laravel-based). A prototype pollution flaw in the frontend JavaScript function getQueryParam (/public/js/main.js) allows attacker-controlled URL query strings to write into Object.prototype. Initial fix in 1.8.139 blocked top-level proto keys but did not sanitize...

CVE-2026-53592 FreeScout vulnerable to prototype pollution in getQueryParam

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. A Prototype Pollution condition in the getQueryParam function /public/js/main.js and was addressed in version 1.8.139 by blocking URL query keys matching the pattern proto. However, this mitigation is incomplete: i...

CVE-2026-53591

FreeScout (Laravel-based) prior to v1.8.223 is vulnerable: an unauthenticated attacker can inject messages into existing conversations by sending an email to the public address with a crafted In-Reply-To header. The injected message appears as a legitimate customer reply, reopens the conversation...

CVE-2026-53591 FreeScout Vulnerable to Unauthenticated Conversation Thread Injection via HMAC Length Bypass in FetchEmails

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.223, an unauthenticated attacker can inject messages into any existing support conversation by sending a single email to the helpdesk's public address with a crafted In-Reply-To header. No...

CVE-2026-45295

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.219, the open tracking endpoint GET /thread/read/conversationid/threadid allows unauthenticated attackers to enumerate valid conversation and thread IDs, and modify thread state openedat...

CVE-2026-48812

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.221, FreeScout's attachment download route skips token authentication for any attachment whose tokentype is set to 1 TOKENTYPELEGACY. Because this route is unauthenticated and the file path is...

CVE-2026-48812 FreeScout Allows Unauthenticated Access to Legacy Attachment Files

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.221, FreeScout's attachment download route skips token authentication for any attachment whose tokentype is set to 1 TOKENTYPELEGACY. Because this route is unauthenticated and the file path is...

CVE-2026-48812

The CVE refers to FreeScout (Laravel-based help desk) prior to version 1.8.221. The vulnerability is that the attachment download route skipped token authentication for attachments with token_type = 1 (TOKEN_TYPE_LEGACY), making the route unauthenticated. Because the file path is deterministic, a...

CVE-2026-45295 FreeScout Vulnerable to Unauthenticated Thread Read-Status Manipulation and Conversation Enumeration via Open Tracking Endpoint

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.219, the open tracking endpoint GET /thread/read/conversationid/threadid allows unauthenticated attackers to enumerate valid conversation and thread IDs, and modify thread state openedat...

CVE-2026-45295 FreeScout Vulnerable to Unauthenticated Thread Read-Status Manipulation and Conversation Enumeration via Open Tracking Endpoint

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.219, the open tracking endpoint GET /thread/read/conversationid/threadid allows unauthenticated attackers to enumerate valid conversation and thread IDs, and modify thread state openedat...

CVE-2026-45295

FreeScout (PHP/Laravel) before version 1.8.219 is vulnerable via the open tracking endpoint GET /thread/read/{conversation_id}/{thread_id}, allowing unauthenticated users to enumerate valid conversation and thread IDs and to modify the thread’s opened_at timestamp. The issue is fixed in 1.8.219. ...

PT-2026-61667

Name of the Vulnerable Software and Affected Versions FreeScout versions prior to 1.8.221 Description An unauthenticated remote attacker can download attachments created by older versions of the software. This occurs because the attachment download route skips token authentication when the token...

PT-2026-61703

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the denylist that neutralizes dangerous file uploads Helper::$restricted extensions is incomplete: it does not cover the .pht extension. The authenticated upload endpoint POST...

PT-2026-61666

Name of the Vulnerable Software and Affected Versions FreeScout versions prior to 1.8.219 Description An issue exists in the open tracking endpoint GET /thread/read/conversation id/thread id that allows unauthenticated attackers to enumerate valid conversation and thread IDs. Additionally, this...

The vulnerability of the FreeScout support service management system, related to uncontrolled resource consumption, allows for the triggering of service failures.

The vulnerability of the FreeScout support service management system is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor, operating remotely, to cause service failures...

CVE-2026-41183

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, the assigned-only restriction is applied to direct conversation view and folder queries, but not to non-folder query builders. Global search and the AJAX filter path still reveal conversations that should be...

CVE-2026-40566

FreeScout is a free self-hosted help desk and shared mailbox. Versions prior to 1.8.213 have a Server-Side Request Forgery SSRF vulnerability in the IMAP/SMTP connection test functionality of FreeScout's MailboxesController. Three AJAX actions fetchtest line 731, sendtest line 682, and imapfolder...

CVE-2026-40565

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, FreeScout's linkify function in app/Misc/Helper.php converts plain-text URLs in email bodies into HTML anchor tags without escaping double-quote characters " in the URL. HTMLPurifier called first via...

CVE-2026-40592

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the undo-send route GET /conversation/undo-reply/threadid checks only whether the current user can view the parent conversation. It does not verify that the current user created the reply being undone. In a...