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CVE-2026-48810

FreeScout: Thread Edit Authorization Bypass via Missing Mailbox Check PUBLISHED

Description (CNA)

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.221, while investigating the ThreadPolicy::delete issue reported previously, the same missing mailbox membership check was found in the sibling ThreadPolicy::edit method. A user with the PERM_EDIT_CONVERSATIONS permission who created a message or internal note in Mailbox A can rewrite that thread's body after an administrator removes them from Mailbox A, because the policy checks only authorship and a global permission flag — not current mailbox membership. This vulnerability is fixed in 1.8.221.

Affected (CNA)

Vendor / productVersions
freescout-help-desk / freescoutaffected < 1.8.221

CWE

CWE-285

References

ADP enrichment

CISA-ADP

No English description supplied.