What’s Vulnerable › Vulnerabilities

CVE-2026-48811: FreeScout: Thread Deletion Bypasses Mailbox Access Revocation

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-29 · updated 2026-07-22
• Weakness: CWE-862

Description

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.221, FreeScout allows a non-admin user to permanently delete an internal note (private thread) from any conversation, even after that user's access to the mailbox containing the conversation has been revoked. The ThreadPolicy::delete authorization policy does not verify mailbox membership, so a former team member retains destructive write access to notes they created. This vulnerability is fixed in 1.8.221.

Affected products

• freescout-help-desk freescout: before 1.8.221

References

• https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-9vx8-gx3p-9mh6
• https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-9vx8-gx3p-9mh6

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