Multiple cross site scripting (XSS) vulnerabilities affect OPNsense firewall vesrion 26.7.1_1 and earlier allows low privileged attacker to execute Javascript in the context of another user visiting a specific page or clicking on a specifically crafted link.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
OPNsense OPNsense firewall unaffected
Version Status Constraints
0 affected ≤ 26.7.1_1
26.7.7 unaffected —

No data.

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://digitalcanion.com/security-research/#ghsa-9h93-hhcx-957c cve-icon cve-icon
https://github.com/opnsense/core/security/advisories/GHSA-9h93-hhcx-957c cve-icon cve-icon
History

Mon, 26 Oct 2026 09:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79

Mon, 26 Oct 2026 08:45:00 +0000

Type Values Removed Values Added
Description Multiple cross site scripting (XSS) vulnerabilities affect OPNsense firewall vesrion 26.7.1_1 and earlier allows low privileged attacker to execute Javascript in the context of another user visiting a specific page or clicking on a specifically crafted link.
Title Multiple cross-site scripting (XSS) in OPNsense
References
Metrics cvssV4_0

{'score': 5.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P/S:P/AU:Y/R:I/V:C/RE:M/U:Amber'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published:

Updated: 2026-10-26T08:10:14.534Z

Reserved: 2026-10-22T13:40:10.572Z

Link: CVE-2026-115425

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-26T09:16:34.620

Modified: 2026-10-26T09:16:34.620

Link: CVE-2026-115425

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T09:30:11Z

Weaknesses