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 embe…
Summary
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 bro…
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Lint boundary warnings (1)
The following non-blocking warnings were raised during the lint phase of this triage (e.g. reference URLs not yet on the allowlist). They do not affect entry usability and are disclosed for transparency (see DR-002).
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REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://docs.opnsense.org/releases/CE_26.1.html#june-02-2026
Sources
- NVD DATABASE
Original Links
- https://docs.opnsense.org/releases/CE_26.1.html#june-02-2026
- https://github.com/opnsense/core/commit/b11d6b340716e240868ab19a369e058a46f0876f
- https://www.vulncheck.com/advisories/opnsense-stored-xss-via-firewall-rule-description-field
Timeline
- nvd_ingest NVD