CVE-2026-53595
freescout: CWE-178
- Act
- CVSS 9.4 Critical
- VulnCheck KEV
What it is
ReportedFreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the public endpoint `POST /user-setup/{hash}/{invite_sent_at}` (`OpenController@userSetupSave`) selects the target account solely by its `invite_hash` column, then overwrites that account's email and password and logs in as it. No authentication, cookie, or prior session is required. After a user activates, FreeScout sets `invite_hash` to the empty string.…
Dates
What is affected
Reportedfreescout; freescout. Product-level identification only; no affected-version conclusion is available from this field.
Dates
Urgency and basis
Tracker computedAct
Current priority score and EPSS: loading from the tracker record. They are read when this page loads and are not shown without JavaScript. They change daily and are not part of "Source last updated".
Dates
Exploitation evidence
Reportedlisted by a tracked exploitation catalog · VulnCheck KEV
Dates
What to do
ReportedApply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Dates
Detection and validation
Mapped metadata availability only. These signals do not change priority.
Sigma
Not mapped by tracked sources.
Atomic
Not mapped by tracked sources.
Nuclei
FreeScout < 1.8.224 - Invite Hash Authorization Bypass. Check identifier: CVE-2026-53595.
Open Nuclei metadata
Evidence detail
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