CVE-2019-25373

OPNsense 19.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting crafted input to the category parameter. Attackers can send POST requests to firewall_rules_edit.php with script payloads in the category field to execute arbitrary JavaScript in the browsers of other users accessing firewall rule pages.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://forum.opnsense.org/index.php?topic=11469.0	Release Notes
https://opnsense.org	Product
https://www.exploit-db.com/exploits/46351	Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/opnsense-stored-xss-via-firewallruleseditphp	Broken Link

Configurations

Configuration 1 (hide)

cpe:2.3:a:opnsense:opnsense:19.1:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-15 14:16

Updated : 2026-02-18 19:13

NVD link : CVE-2019-25373

Mitre link : CVE-2019-25373

CVE.ORG link : CVE-2019-25373

JSON object : View

Products Affected

opnsense

opnsense

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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