CVE-2026-48538: GFI Archiver stored XSS in ImportSettingsWizard

CVE-2026-48538 · Severity: medium · CVSS 5.4 · Published 2026-07-23

GFI Archiver, a solution used by businesses to archive and manage email and file history, contains a security flaw in its import settings configuration. An authenticated user can inject malicious scripts that are saved on the server and later executed in the browsers of other users, such as administrators. This could lead to unauthorized actions being performed on behalf of other users or the theft of sensitive session information.

Technologies: GFI Software Archiver. Vendors: GFI Software.

Quick answers

Is CVE-2026-48538 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-48538 being exploited in the wild.
How severe is CVE-2026-48538?
Medium severity, with a CVSS score of 5.4, published 23 July 2026.
Which products and versions are affected?
GFI Software Archiver before 15.13.
Is there a fix for CVE-2026-48538?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-48538 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-48538?
Check whether you run GFI Software Archiver at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored cross-site scripting (XSS) vulnerability exists in GFI Archiver versions prior to 15.13. The flaw is located within the /Archiver/ImportSettingsWizard.ashx endpoint, specifically involving the 'configured folders' parameter. The root cause is the failure of the ImportSettingsWizard.SaveAllConfigSettings() function to perform proper output encoding before storing the data. An authenticated attacker can submit a malicious payload that is subsequently executed in the context of any user who views the Archive Assistant default import settings. This vulnerability is tracked as CVE-2026-48538 and has been addressed in version 15.13.

Affected products

  • GFI Software Archiver before 15.13

Timeline

  • 2026-07-23: disclosed
  • 2026-07-23: advisory

References

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