CVE-2019-25368: OPNsense 19.1 Reflected XSS via diag_backup.php

Published Feb 15, 2026
·
Updated

OPNsense 19.1 contains multiple cross-site scripting vulnerabilities in the diagbackup.php endpoint that allow attackers to inject malicious scripts through multiple parameters including GDriveGDriveEmail, GDriveGDriveFolderID, GDriveGDriveBackupCount, Nextcloudurl, Nextclouduser, Nextcloudpassword, Nextcloudpasswordencryption, and Nextcloudbackupdir. Attackers can submit POST requests with script payloads in these parameters to execute arbitrary JavaScript in the context of authenticated administrator sessions.

Affected Software

2 affected components
OPNsense OPNsense
OPNsense OPNsense=19.1

Remediation

Information

OPNsense 19.1.1 released

Event History

Feb 15, 2026
CVE Published
via MITRE·01:58 PM
Data Sourced
via MITRE·01:58 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·02:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2019-25368?

CVE-2019-25368 has a medium severity rating due to its ability to allow cross-site scripting attacks.

2

How do I fix CVE-2019-25368?

To fix CVE-2019-25368, upgrade to a patched version of OPNsense beyond 19.1.

3

What parameters are affected by CVE-2019-25368?

CVE-2019-25368 affects parameters such as GDrive_GDriveEmail and GDrive_GDriveFolderID in the diag_backup.php endpoint.

4

Can CVE-2019-25368 be exploited remotely?

Yes, CVE-2019-25368 can be exploited remotely if the vulnerable version of OPNsense is exposed.

5

What is the impact of CVE-2019-25368 on users?

The impact of CVE-2019-25368 may include unauthorized script execution, potentially leading to user data theft or session hijacking.

Contact

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