Vendor
freescout-help-desk
91 known vulnerabilities.
39 results · Clear filters · Feed
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High 7.5
FreeScout: Conditional stored admin XSS via failed-job details
FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.230, a pre-authenticated attacker can place HTML in a failed-login email value that is copied through monitored user activity into a queued SendAlert job. If alert delivery fails, the seria…
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High 7.1
FreeScout: a restricted agent can lift their own admin-imposed "see only assigned conversations" restriction via profile save
FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.231, the profile form exposes the only_assigned_tickets permission to its non-admin owner, and UsersController::profileSave() adds or removes User::PERM_ONLY_ASSIGNED_TICKETS without checki…
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High 8.2
FreeScout: Server-side request forgery via incomplete outbound host validation and unguarded download sinks
FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.230, multiple outbound paths in Helper::downloadRemoteFile(), Helper::checkPort(), Helper::sanitizeRemoteUrl(), MailboxesController.php, and ModulesController.php do not consistently enforc…
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High 7.7
FreeScout: Cross-User Notification Data Disclosure via LIKE Wildcard Injection in Polycast Channel Query
FreeScout is a self-hosted help desk and shared mailbox application. Prior to version 1.8.226, the polycast/receive endpoint fails to escape SQL LIKE wildcards in supplied channel names, while channel authorization applies only to names with specific prefix…
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High 7.6
FreeScout: Stored XSS in mailbox signature via same-origin JS upload
FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.225, a user who can edit a mailbox signature can combine a scriptable file uploaded through /uploads/upload with nested tag fragments that bypass Helper::stripDangerousTags(). The resulting…
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High 8.8
FreeScout Vulnerable to Authenticated Remote Code Execution via incomplete upload extension denylist (.pht) — bypass of CVE-2025-48471
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 aut…
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High 8.6
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…
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High 7.5
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 `token_type` is set to `1` (`TOKEN_TYPE_LEGACY`). Because th…
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High 7.5
FreeScout: Agent Impersonation via Missing HMAC Verification on Notification Reply Message-ID Path
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.220, the email processing pipeline in FreeScout's FetchEmails command has two code paths for identifying agent (user) replies based on In-Reply-To / References hea…
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High 7.1
FreeScout: Conversation Change-Customer Cross-Mailbox Authorization Bypass
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.214, the Change Customer modal correctly hides out-of-scope customers through the mailbox-filtered search endpoint, but the backend conversation_change_cus…
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High 7.7
FreeScout vulnerable to SSRF via Helper::sanitizeRemoteUrl: redirect destination not re-validated, allowing internal HTTP / cloud-metadata access
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, Helper::sanitizeRemoteUrl() in app/Misc/Helper.php follows HTTP redirects via curlGetLastRedirectedUrl() but then re-validates the original URL instea…
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High 7.6
FreeScout Stored XSS vulnerability in mailbox auto-reply: payload reaches every customer's email client (no CSP), bypassing strip_tags validator with mixed text+HTML content
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, a user with updateAutoReply permission can store an XSS payload in the mailbox auto-reply message. The payload is rendered unescaped in the auto-reply…
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High 7.1
FreeScout's client-controlled attachment IDs allow deletion of existing conversation attachments
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, the reply and draft flows trust client-supplied encrypted attachment IDs. Any IDs present in `attachments_all[]` but omitted from retained lists are decrypted and passed d…
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High 7.1
FreeScout's signature only mailbox permission allows unauthorized mailbox chat setting changes
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, `MailboxesController::updateSave()` persists `chat_start_new` outside the allowed-field filter. A user with only the mailbox `sig` permission sees only the signature field…
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High 7.1
FreeScout has assigned-only visibility bypass via save_draft that allows hidden conversation draft injection
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, when `APP_SHOW_ONLY_ASSIGNED_CONVERSATIONS` is enabled, direct conversation view correctly blocks users who are neither the assignee nor the creator. The `save_draft` AJAX…
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High 7.1
FreeScout has assigned-only visibility bypass that allows editing hidden customer-authored threads
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, customer-thread editing is authorized through `ThreadPolicy::edit()`, which checks mailbox access but does not apply the assigned-only restriction from `ConversationPolicy…
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High 7.1
FreeScout: Improper Authorization in Phone Conversation Creation Enables Cross-Mailbox Hidden Customer Modification
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the phone-conversation creation flow accepts attacker-controlled `customer_id`, `name`, `to_email`, and `phone` values and resolves the target customer in the backend with…
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High 7.6
FreeScout has Customer Edit Cross-Mailbox Email Takeover
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, a low-privileged agent can edit a visible customer and add an email address already owned by a hidden customer in another mailbox. The server discloses the hidden customer…
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High 8.5
FreeScout Vulnerable to XSS via Mailbox Signature Due to Incomplete HTML Sanitization
FreeScout is a free self-hosted help desk and shared mailbox. Versions prior to 1.8.213 have a stored cross-site scripting (XSS) vulnerability in the mailbox signature feature. The sanitization function `Helper::stripDangerousTags()` (`app/Misc/Helper.php:568…
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High 8.9
FreeScout has Authentication Bypass and Information Disclosure in SystemController via /system/cron
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, an unauthenticated attacker can access diagnostic and system tools that should be restricted to administrators. The /system/cron endpoint relies on a static MD5 hash deriv…
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High 8.1
FreeScout Vulnerable to CSS Injection via Stored Style Tag in Mailbox Signature (CSRF Token Exfiltration)
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, FreeScout's `Helper::stripDangerousTags()` removes `<script>`, `<form>`, `<iframe>`, `<object>` but does NOT strip `<style>` tags. The mailbox signature field is saved via…
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High 8.8
FreeScout has Predictable Attachment Token that Allows Unauthenticated Private File Download via Brute Force
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, attachment download tokens are generated using a weak and predictable formula: `md5(APP_KEY + attachment_id + size)`. Since attachment_id is sequential and size can be bru…
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High 7.6
FreeScout Customer Merge Cross-Mailbox Authorization Bypass
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.212, FreeScout does not take the limit_user_customer_visibility parameter into account when merging customers. This vulnerability is fixed in 1.8.212.
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High 8.5
FreeScout: Stored XSS through SVG file upload with filter bypass
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. In versions 1.8.208 and below, bypasses of the attachment view logic and SVG sanitizer make it possible to upload and render an SVG that runs malicious JavaScript. An extension…
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High 8.8CVE-2026-27636 Public exploit
FreeScout: Missing .htaccess in Restricted File Extensions Allows Remote Code Execution on Apache
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.206, FreeScout's file upload restriction list in `app/Misc/Helper.php` does not include `.htaccess` or `.user.ini` files. On Apache servers with `AllowOver…
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High 8.6
FreeScout's deserialization of untrusted data can lead to Remote Code Execution
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Versions 1.8.185 and earlier contain a deserialization of untrusted data vulnerability that allows authenticated attackers with knowledge of the application's APP_KEY to achiev…
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High 8.6
FreeScout's deserialization of untrusted data leads to Remote Code Execution
FreeScout is a lightweight free open source help desk and shared inbox built with PHP (Laravel framework). In versions 1.8.185 and below, there is a critical deserialization vulnerability in the /conversation/ajax endpoint that allows authenticated users with…
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High 7.0
FreeScout Has Business Logic Errors
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.180, an authorized user with the administrator role or with the privilege User::PERM_EDIT_USERS can create a user, specifying the path to the user's avatar ../.htaccess during …
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High 8.5
FreeScout Has Business Logic Errors
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.180, the laravel-translation-manager package does not correctly validate user input, enabling the deletion of any directory, given sufficient access rights. This issue has been…
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High 7.0
FreeScout Has Business Logic Errors
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.180, insufficient input validation during user creation has resulted in a mass assignment vulnerability, allowing an attacker to manipulate all fields of the object, which are …
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High 7.1
FreeScout Has Business Logic Errors
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.180, the application's logic requires the user to perform a correct sequence of actions to implement a functional capability, but the application allows access to the functiona…
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High 7.1
FreeScout Has Business Logic Errors
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.180, when adding and editing user records using the fill() method, there is no check for the absence of the password field in the data coming from the user, which leads to a ma…
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High 7.0
FreeScout Vulnerable to Arbitrary File Upload
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.179, the application does not check or performs insufficient checking of files uploaded to the application. This allows files to be uploaded with the phtml and phar extensions,…
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High 8.6
FreeScout Vulnerable to Remote Code Execution (RCE)
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, FreeScout is vulnerable to code injection due to insufficient validation of user input in the php_path parameter. The backticks characters are not removed, as well as tabu…
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High 8.6
FreeScout Vulnerable to Deserialization of Untrusted Data
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, FreeScout is vulnerable to deserialization of untrusted data due to insufficient validation. Through the set function, a string with a serialized object can be passed, and…
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High 7.0
FreeScout Has Insufficient Protection Against CRLF-injection
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, the application performs insufficient validation of user-supplied data, which is used as arguments to string formatting functions. As a result, an attacker can pass a stri…
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High 7.6
Freescout vulnerable to Stored HTML Injection in Editing Received Emails
FreeScout is a free, self-hosted help desk and shared mailbox. A stored HTML Injection vulnerability has been identified in the Email Receival Module of the Freescout Application. The vulnerability allows attackers to inject malicious HTML content into emails…
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High 8.0
FreeScout Stored XSS to Privilege Escalation After CSP Bypass
FreeScout is a self-hosted help desk and shared mailbox. A Stored Cross-Site Scripting (XSS) vulnerability has been identified within the Signature Input Field of the FreeScout Application prior to version 1.8.128. Stored XSS occurs when user input is not pro…
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High 7.1
SMTP Mail Credentials Disclosed in Error Log in freescout
FreeScout is an open source help desk and shared inbox built with PHP. A vulnerability has been identified in the Free Scout Application, which exposes SMTP server credentials used by an organization in the application to users of the application. This issue …