CVE-2026-48534: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GFI Software GFI Archiver
GFI Archiver before 15.13 contains a stored cross-site scripting vulnerability in the IMAP Server configuration that allows authenticated attackers to inject arbitrary web script or HTML via the server URL parameter to /Archiver/ImapServerWizard.aspx. The injected payload is stored by ImapServerWizard.SaveAllConfigSettings() without output encoding and is executed in the browsers of users who subsequently view the IMAP Server configuration page.
AI Analysis
Technical Summary
CVE-2026-48534 is a stored cross-site scripting vulnerability in GFI Archiver before version 15.13. It arises from improper neutralization of input during web page generation in the IMAP Server configuration interface. Authenticated users can inject malicious scripts through the server URL parameter on /Archiver/ImapServerWizard.aspx. The vulnerable function ImapServerWizard.SaveAllConfigSettings() stores this input without output encoding, leading to script execution in the browsers of users who access the IMAP Server configuration page.
Potential Impact
Successful exploitation allows an authenticated attacker to inject and execute arbitrary scripts in the context of users viewing the IMAP Server configuration page. This can lead to session hijacking, unauthorized actions, or other attacks within the affected users' browser sessions. The vulnerability requires authentication and user interaction to trigger the script execution.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the IMAP Server configuration page to trusted users only and consider monitoring for suspicious activity related to this interface.
CVE-2026-48534: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GFI Software GFI Archiver
Description
GFI Archiver before 15.13 contains a stored cross-site scripting vulnerability in the IMAP Server configuration that allows authenticated attackers to inject arbitrary web script or HTML via the server URL parameter to /Archiver/ImapServerWizard.aspx. The injected payload is stored by ImapServerWizard.SaveAllConfigSettings() without output encoding and is executed in the browsers of users who subsequently view the IMAP Server configuration page.
CVSS v4.0
Score 5.1medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-48534 is a stored cross-site scripting vulnerability in GFI Archiver before version 15.13. It arises from improper neutralization of input during web page generation in the IMAP Server configuration interface. Authenticated users can inject malicious scripts through the server URL parameter on /Archiver/ImapServerWizard.aspx. The vulnerable function ImapServerWizard.SaveAllConfigSettings() stores this input without output encoding, leading to script execution in the browsers of users who access the IMAP Server configuration page.
Potential Impact
Successful exploitation allows an authenticated attacker to inject and execute arbitrary scripts in the context of users viewing the IMAP Server configuration page. This can lead to session hijacking, unauthorized actions, or other attacks within the affected users' browser sessions. The vulnerability requires authentication and user interaction to trigger the script execution.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the IMAP Server configuration page to trusted users only and consider monitoring for suspicious activity related to this interface.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-05-21T18:34:46.417Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a623fe59c2644c7f85af568
Added to database: 07/23/2026, 16:23:01 UTC
Last enriched: 07/30/2026, 22:24:01 UTC
Last updated: 09/07/2026, 10:52:09 UTC
Views: 89
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