CVE-2026-85742 · Package
NO FIX YET · SEE WHAT TO DO
FreeScout's administrator job-details page renders stored alert-job payloads after a sanitizer that keeps event-handler attributes, so HTML from a failed-login email value can execute. An attacker who can trigger a failed login can run JavaScript in an administrator's session and perform administrator actions on the same origin.
first public Aug 14, 2026 · 1 source
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Self-hosted FreeScout installations before 1.8.230 that have Logs Monitoring enabled and a failing alert email job, and where an administrator opens the job-details endpoint as a top-level page. The normal modal path is not affected in the tested configuration, so teams that only use the modal can deprioritize it but should still upgrade.
Not affected if default-config, modal-only-use
Who cares freescout, help-desk, php, self-hosted
1.8.230 are affected.1.8.230 or later.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 serialized payload is stored in failed_jobs and the administrator job-details endpoint renders it after a blacklist sanitizer that leaves executable event-handler attributes. When an administrator opens /system/ajax-html/job_details/{id} as a top-level page, the raw fragment lacks the normal layout policy and attacker-controlled JavaScript can perform same-origin administrator actions. Logs Monitoring for users, a failed alert email job, queue failure storage, and top-level administrator interaction are all required; the normal modal path is not affected in the tested configuration. This issue is fixed in version 1.8.230.
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