Is CVE-2026-48539 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-48539 being exploited in the wild.

How severe is CVE-2026-48539?

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-2026-48539?

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-2026-48539 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-48539?

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.

CVE-2026-48539: GFI Archiver stored XSS in MailInsights scheduled report configuration

CVE-2026-48539 · Severity: medium · CVSS 5.4 · Published 2026-07-23

GFI Archiver, a solution used by organizations to archive and manage email and file history, is vulnerable to a security flaw in its reporting module. An authenticated user can inject malicious scripts into report names, which then execute in the browser of other users viewing those reports. This could allow an attacker to perform unauthorized actions or steal session information from other employees using the system.

Technologies: GFI Software Archiver. Vendors: GFI Software.

Quick answers

Is CVE-2026-48539 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-48539 being exploited in the wild.
How severe is CVE-2026-48539?: 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-2026-48539?: 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-2026-48539 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-48539?: 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 in the MailInsights scheduled report configuration, specifically within the 'report name' parameter handled by /Archiver/MailInsights.aspx. The root cause is a failure to perform output encoding in the ReportScheduling.btnSaveReport_Click() function. An authenticated attacker can submit a malicious payload that is stored in the database and subsequently executed in the context of any user who views the MailInsights page. This vulnerability is tracked as CVE-2026-48539 and is resolved in version 15.13.

Affected products

GFI Software Archiver before 15.13

Timeline

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

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.