CVE-2026-62856High· 7.7▾ TwilightFreeScout 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 name…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.4 · likelihood 0.1 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.3%
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 prefixes. An unauthenticated attacker with a guest session and valid CSRF token can submit a wildcard channel name to retrieve matching notification events intended for other users. Notification payload generation lacks a corresponding access check, exposing conversation message content, identifiers, URLs, and notification HTML across users and mailboxes. This issue is fixed in version 1.8.226.
freescout < 1.8.226Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-62851Medium· 4.3FreeScout: Cross-mailbox conversation existence / internal-id disclosure via the search-by-number (`#`) shortcut (missing mailbox authorization)
CVE-2026-62852Medium· 6.5FreeScout: Missing Authorization and Exposure of Sensitive Information to an Unauthorized Actor and Authorization Bypass Through User-Controlled Key
CVE-2026-62854High· 7.6FreeScout: Stored XSS in mailbox signature via same-origin JS upload
CVE-2026-85744Medium· 5.4FreeScout: Conversation Merge Cross-Mailbox Authorization Bypass
CVE-2026-62850Medium· 5.3FreeScout: Administrative tools.php endpoint is accessible to low-privileged users, enabling filesystem enumeration and unthrottled brute-force of application secrets
CVE-2026-85743High· 8.2FreeScout: Server-side request forgery via incomplete outbound host validation and unguarded download sinks