Monitor vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
5.1
OPNsense 19.1: Attackers can inject malicious JavaScript in user browsers
CVE-2019-25370
Summary
OPNsense 19.1 is affected by a security issue that allows attackers to inject malicious code into users' web browsers. This can happen if an attacker sends a specially crafted request to a specific page. To stay safe, update to a patched version of OPNsense as soon as possible.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| opnsense | opnsense | 19.1 | – |
Original title
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by submitting crafted input through multiple parameters. Attackers can send P...
Original description
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by submitting crafted input through multiple parameters. Attackers can send POST requests to interfaces_vlan_edit.php with script payloads in the tag, descr, or vlanif parameters to execute arbitrary JavaScript in users' browsers.
nvd CVSS3.1
6.1
nvd CVSS4.0
5.1
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
- 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-reflected-xss-via-interfacesvlaned... Broken Link
Published: 15 Feb 2026 · Updated: 11 Mar 2026 · First seen: 6 Mar 2026