CVE-2026-40496

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: md5APPKEY + attachmentid + size. Since attachmentid is sequential and size can be brute-forced in a small range, an unauthenticate...

CVE-2026-40497

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, FreeScout's Helper::stripDangerousTags removes...

CVE-2026-40497

Summary (concrete details available) : FreeScout prior to version 1.8.213 is vulnerable to CSS injection in the mailbox signature due to incomplete stripping of dangerous tags: stripDangerousTags() removes script/form/iframe/object but not style, allowing inline CSS to exfiltrate CSRF tokens. An ...

EUVD-2026-24052

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, FreeScout's Helper::stripDangerousTags removes , , , but does NOT strip tags. The mailbox signature field is saved via POST /mailbox/settings/id and later rendered unescaped via !!...

CVE-2026-40496 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: md5APPKEY + attachmentid + size. Since attachmentid is sequential and size can be brute-forced in a small range, an unauthenticate...

CVE-2026-40496

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: md5APPKEY + attachmentid + size. Since attachmentid is sequential and size can be brute-forced in a small range, an unauthenticate...

EUVD-2026-24049

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: md5APPKEY + attachmentid + size. Since attachmentid is sequential and size can be brute-forced in a small range, an unauthenticate...

CVE-2026-40496 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: md5APPKEY + attachmentid + size. Since attachmentid is sequential and size can be brute-forced in a small range, an unauthenticate...

CVE-2026-40496 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: md5APPKEY + attachmentid + size. Since attachmentid is sequential and size can be brute-forced in a small range, an unauthenticate...

CVE-2026-40496

CVE-2026-40496 affects FreeScout prior to version 1.8.213, where attachment download tokens were created with a weak formula: md5(APP_KEY + attachment_id + size). Because attachment_id is sequential and size brute-forcible, an unauthenticated attacker can forge valid tokens and download private a...

CVE-2026-41191: Incorrect Authorization

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, MailboxesController::updateSave persists chatstartnew outside the allowed-field filter. A user with only the mailbox sig permission sees only the signature field in the UI, but can still change the hidden...

FreeScout 安全漏洞

FreeScout is a lightweight and powerful free open-source help desk and shared inbox built using PHP Laravel framework by FreeScout Inc. Versions of FreeScout prior to 1.8.214 contained security vulnerabilities. These vulnerabilities stemmed from low-privilege agents, which could edit visible...

FreeScout 安全漏洞

FreeScout is a lightweight and powerful free open-source help desk and shared inbox built using PHP Laravel framework by FreeScout Inc. Versions of FreeScout prior to 1.8.213 contained security vulnerabilities. These vulnerabilities stemmed from the Helper::stripDangerousTags function not removin...

CVE-2026-40565: Improper Neutralization of Input During Web Page Generation

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...

FreeScout 安全漏洞

FreeScout is a lightweight and powerful free open-source help desk and shared inbox built using PHP Laravel framework by FreeScout Inc. Versions of FreeScout prior to 1.8.214 contained security vulnerabilities. These vulnerabilities stemmed from the fact that, under limited visibility, the...

CVE-2026-40590: Authorization Bypass Through User-Controlled Key

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the Change Customer modal exposes a “Create a new customer” flow via POST /customers/ajax with action=create. Under limited visibility, the endpoint drops unique-email validation. If the supplied email already...

FreeScout 安全漏洞

FreeScout is a lightweight and powerful free open-source help desk and shared inbox built using PHP Laravel framework by FreeScout Inc. Versions of FreeScout prior to 1.8.213 contained security vulnerabilities. These vulnerabilities stemmed from the linkify function in app/Misc/Helper.php, which...

FreeScout 安全漏洞

FreeScout is a lightweight and powerful free open-source help desk and shared inbox built using PHP Laravel framework by FreeScout Inc. Versions of FreeScout prior to 1.8.215 contained security vulnerabilities. These vulnerabilities stemmed from the module installation feature’s ability to extrac...

FreeScout 跨站请求伪造漏洞

FreeScout is a lightweight and powerful free open-source help desk and shared inbox built using PHP Laravel framework by FreeScout Inc. Versions of FreeScout prior to 1.8.215 contained a cross-site request forgeing vulnerability. This vulnerability stemmed from the email OAuth disconnection being...

CVE-2026-40567: Improper Encoding or Escaping of Output

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, an unauthenticated attacker can inject arbitrary HTML into outgoing emails generated by FreeScout by sending an email with a crafted From display name. The name is stored in the database without sanitization a...