CVE-2019-25369

MEDIUM

6.4

Description

OPNsense 19.1 contains a stored cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject persistent malicious scripts via the tunable parameter. Attackers can submit POST requests with script payloads that are stored and executed in the context of authenticated user sessions when the page is viewed.

CVE Details

CVSS v3.1 Score6.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/15/2026

Last Modified2/18/2026

Sourcenvd

Honeypot Sightings0

Affected Products

opnsense:opnsense

Weaknesses (CWE)

CWE-79

References

https://forum.opnsense.org/index.php?topic=11469.0(disclosure@vulncheck.com)

https://opnsense.org(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/46351(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/opnsense-stored-xss-via-systemadvancedsysctlphp(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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