PT-2026-67505 · Deciso B.V. · Opnsense

Alex Williams + 1 · CVE-2026-49131 · Publicado 2026-08-03 · Atualizado 2026-08-03

NVD

CVSS v3.1

5.4

Média

Vetor base

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

OPNsense before 26.1.9 contains a stored cross-site scripting vulnerability that allows authenticated attackers with firewall rule management privileges to inject arbitrary HTML or JavaScript by embedding payloads in the firewall rule description field via the filter API endpoint. The unsanitized description value is persisted and later rendered through the default cell formatter in opnsense bootgrid.js, which assigns raw cell content to innerHTML, causing injected scripts to execute in the browser of any authenticated user who views the Firewall Rules page, enabling session hijacking or credential theft.

Correção

XSS

Enumeração de Fraquezas

CWE-79

Identificadores relacionados

CVE-2026-49131

Produtos afetados

Opnsense

Referências · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-49131 · Nota de Segurança
• https://docs.opnsense.org/releases/CE_26.1.html#june-02-2026 · Nota
• https://github.com/opnsense/core/commit/b11d6b340716e240868ab19a369e058a46f0876f · Correção
• https://vulncheck.com/advisories/opnsense-stored-xss-via-firewall-rule-description-field · Nota