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CVE PROGRAM SOURCE RECORD5.1 Medium

CVE-2026-49132

OPNsense < 26.1.9 Stored XSS via Certificate Description Field

Description

OPNsense before 26.1.9 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject arbitrary HTML or JavaScript by embedding payloads in the certificate description field via the trust certificate API. The unsanitized description value is persisted and later rendered in the Dashboard Certificates widget through Certificates.js, which interpolates the raw value into HTML attribute and text content sinks without encoding, causing injected scripts to execute in the browser of any authenticated user who views the Dashboard, enabling session hijacking or credential theft.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Deciso B.V. OPNsense

Default version status: affected

  • 0 to < 26.1.9affected
pkg:github/opnsense/core

References