pfSense Plus < 26.07 / CE < 2.9.0 Stored XSS via status_monitoring.php
pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Status: Monitoring privilege to inject arbitrary JavaScript via graph configuration parameters in /status_monitoring.php. Multiple POST parameters including graph-left, graph-right, time-period, resolution, start-date, end-date, start-time, end-time, graph-type, invert, and refresh-interval are concatenated and written to the global pfSense XML configuration without sanitization, then echoed unsanitized into a JavaScript string context on page render. Because the setting is stored in the global configuration, the payload executes in the browser of every user who visits the Status: Monitoring page.
CVE-2026-56126
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-56126
pfSense Plus
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
pfSense CE
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/getformwork/formwork",
"vendor": "Netgate",
"product": "pfSense Plus",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "26.07",
"versionType": "custom"
}
],
"packageURL": "pkg:github/getformwork/formwork",
"collectionURL": "https://github.com/getformwork/formwork",
"defaultStatus": "unaffected"
},
{
"vendor": "Netgate",
"product": "pfSense CE",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2.9.0",
"versionType": "semver"
}
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-56126
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #7708 · Revision 1
- Added to Heist Feed
- Publisher date