CVE-2026-53595 Scanner.
FreeScout < 1.8.224 - Invite Hash Authorization Bypass
Free and read-only. Scan only sites you own or are allowed to test.
What This Check Does.
Read-only
It only asks your site for public pages, the way a browser would. Nothing is changed, uploaded or stored.
Up to 1 request
A small, fixed number of requests, so the check is quick and will not load your site.
Looks for CVE-2026-53595
It looks for the specific sign of this one vulnerability and ends with a clear answer: vulnerable, not vulnerable, or could not be determined.
About CVE-2026-53595. What It Means.
FreeScout prior to 1.8.224 contains an authentication bypass caused by improper invite_hash handling and decryption failure in user setup endpoint, letting anonymous attackers reset credentials and log in as the lowest-id activated user, exploit requires no authentication.
FAQ
Common Questions.
FreeScout < 1.8.224 - Invite Hash Authorization Bypass. FreeScout prior to 1.8.224 contains an authentication bypass caused by improper invite_hash handling and decryption failure in user setup endpoint, letting anonymous attackers reset credentials and log in as the lowest-id activated user, exploit requires no authentication.
Atlas sends up to 1 read-only request to your site and looks for the specific sign of CVE-2026-53595 in FreeScout Help Desk FreeScout. Nothing is changed, uploaded or stored on your site.
CVE-2026-53595 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing. Its CVSS score is 9.4.
Yes. The check only reads public pages, the same way a browser or a search engine would. Scan only sites you own or are allowed to test.
It means no sign of CVE-2026-53595 was found by this read-only check. It does not prove the site is free of other weaknesses.
Update FreeScout Help Desk FreeScout to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. The vendor links and details are in the CVE-2026-53595 briefing linked on this page.
Scan only sites you own or have written permission to test. A result of Not Vulnerable means this read-only check found no sign of CVE-2026-53595; it is not a guarantee that the site is secure.