Medium severity6.1NVD Advisory· Published Feb 15, 2026· Updated Jun 17, 2026

CVE-2019-25374

Description

OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by exploiting the passthrough_networks parameter in vpn_ipsec_settings.php. Attackers can craft POST requests with JavaScript payloads in the passthrough_networks parameter to execute arbitrary code in users' browsers.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Opnsense/Opnsense3 versions
cpe:2.3:a:opnsense:opnsense:19.1:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:opnsense:opnsense:19.1:*:*:*:*:*:*:*
- (no CPE)range: 19.1
- (no CPE)range: 19.1

Patches

Vulnerability mechanics

References

www.exploit-db.com/exploits/46351nvdExploitThird Party AdvisoryVDB Entry
forum.opnsense.org/index.phpnvdRelease Notes
opnsense.orgnvdProduct
www.vulncheck.com/advisories/opnsense-reflected-xss-via-vpnipsecsettingsphpnvdBroken Link

News mentions

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