{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-56128","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-06-18T19:15:10.651Z","datePublished":"2026-09-03T14:22:32.197Z","dateUpdated":"2026-10-01T19:19:23.911Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-01T19:19:23.911Z"},"title":"pfSense Plus < 26.07 / CE < 2.9.0 Stored XSS via firewall_schedule_edit.php","descriptions":[{"lang":"en","value":"pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Firewall: Schedules: Edit privilege to inject arbitrary JavaScript via the descr parameter in /firewall_schedule_edit.php. The schedule description is stored without HTML sanitization and subsequently inserted into an HTML attribute value in /firewall_rules.php with only single-quote escaping applied, permitting double-quote breakout. The payload executes in the browser of any user with the Firewall: Rules privilege who views the rules list with the affected schedule attached."}],"datePublic":"2026-08-20T00:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-79","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"affected":[{"vendor":"Netgate","product":"pfSense Plus","collectionURL":"https://github.com/getformwork/formwork","packageURL":"pkg:github/getformwork/formwork","repo":"https://github.com/getformwork/formwork","versions":[{"version":"0","status":"affected","versionType":"custom","lessThan":"26.07"}],"defaultStatus":"unaffected"},{"defaultStatus":"affected","vendor":"Netgate","product":"pfSense CE","versions":[{"status":"affected","version":"0","versionType":"semver","lessThan":"2.9.0"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:netgate:pfsense_plus:*:*:*:*:*:*:*:*","versionEndExcluding":"26.07"},{"vulnerable":true,"criteria":"cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*","versionEndExcluding":"2.9.0"}]}]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","version":"3.1","baseSeverity":"MEDIUM","baseScore":5.4,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}}],"references":[{"url":"https://docs.netgate.com/downloads/pfSense-SA-26_11.webgui.asc","tags":["vendor-advisory","patch"],"name":"Vendor Advisory"},{"url":"https://docs.netgate.com/pfsense/en/latest/releases/26-07.html","tags":["release-notes"],"name":"Plus Release Notes"},{"url":"https://docs.netgate.com/pfsense/en/latest/releases/2-9-0.html","tags":["release-notes"],"name":"CE Release Notes"},{"url":"https://www.vulncheck.com/advisories/pfsense-plus-ce-stored-xss-via-firewall-schedule-edit-php","tags":["third-party-advisory"]}],"credits":[{"lang":"en","value":"Alex Williams from Pellera Technologies","type":"finder"},{"lang":"en","value":"VulnCheck","type":"coordinator"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-03T15:04:27.998871Z","id":"CVE-2026-56128","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-03T17:23:08.982Z"}}]}}