{"id":"CVE-2026-27508","state":"PUBLISHED","title":"Smoothwall Express < 3.1 Update 13 Reflected XSS in redirect.cgi via url Parameter","description":"Smoothwall Express versions prior to 3.1 Update 13 contain a reflected cross-site scripting vulnerability in the /redirect.cgi endpoint due to improper sanitation of the url parameter. Attackers can craft malicious URLs with javascript: schemes that execute arbitrary JavaScript in victims' browsers when clicked through the unsanitized link.","publishedAt":"2026-03-30T16:51:50.165Z","updatedAt":"2026-07-28T01:48:28.994Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["Smoothwall Express"],"affected":[{"vendor":"Smoothwall","product":"Express","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.1 Update 13","versionType":"custom"}]}],"references":["https://community.smoothwall.org/forum/viewtopic.php?t=45095","https://www.vulncheck.com/advisories/smoothwall-express-reflected-xss-in-redirect-cgi-via-url-parameter"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/27xxx/CVE-2026-27508.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-27508","state":"PUBLISHED","datePublished":"2026-03-30T16:51:50.165Z","dateUpdated":"2026-07-28T01:48:28.994Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-02-19T19:51:07.327Z"},"containers":{"cna":{"title":"Smoothwall Express < 3.1 Update 13 Reflected XSS in redirect.cgi via url Parameter","descriptions":[{"lang":"en","value":"Smoothwall Express versions prior to 3.1 Update 13 contain a reflected cross-site scripting vulnerability in the /redirect.cgi endpoint due to improper sanitation of the url parameter. Attackers can craft malicious URLs with javascript: schemes that execute arbitrary JavaScript in victims' browsers when clicked through the unsanitized link."}],"affected":[{"vendor":"Smoothwall","product":"Express","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.1 Update 13","versionType":"custom"}]}],"references":[{"url":"https://community.smoothwall.org/forum/viewtopic.php?t=45095","tags":["vendor-advisory","patch"]},{"url":"https://www.vulncheck.com/advisories/smoothwall-express-reflected-xss-in-redirect-cgi-via-url-parameter","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","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:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":5.4,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-07-28T01:48:28.994Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:smoothwall:smoothwall_express:*:*:*:*:*:*:*:*","versionEndExcluding":"3.1"}]}]}],"source":{"discovery":"EXTERNAL"},"credits":[{"lang":"en","value":"Alex Williams from Pellera Technologies","type":"finder"},{"lang":"en","value":"VulnCheck","type":"coordinator"}],"x_generator":{"engine":"vulncheck"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-31T17:51:51.058978Z","id":"CVE-2026-27508","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-31T18:05:32.880Z"}}]}}}