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4 vulnerabilities found for Express by Smoothwall

CVE-2026-27508 (GCVE-0-2026-27508)

Vulnerability from nvd – Published: 2026-03-30 16:51 – Updated: 2026-03-31 18:05
VLAI?
Title
Smoothwall Express < 3.1 Update 13 Reflected XSS in redirect.cgi via url Parameter
Summary
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.
Severity ?
5.1 (Medium)
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
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE
  • CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
Impacted products
Vendor Product Version
Smoothwall Express Affected: 0 , ≤ 3.1 Update 13 (custom)
Create a notification for this product.
Credits
Alex Williams from Pellera Technologies VulnCheck
Show details on NVD website
To clipboard 

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CVE-2026-26352 (GCVE-0-2026-26352)

Vulnerability from nvd – Published: 2026-03-30 16:49 – Updated: 2026-03-30 18:09
VLAI?
Title
Smoothwall Express < 3.1 Update 13 Stored XSS in vpnmain.cgi via VPN_IP Parameter
Summary
Smoothwall Express versions prior to 3.1 Update 13 contain a stored cross-site scripting vulnerability in the /cgi-bin/vpnmain.cgi script due to improper sanitation of the VPN_IP parameter. Authenticated attackers can inject arbitrary JavaScript through VPN configuration settings that executes when the affected page is viewed by other users.
Severity ?
5.1 (Medium)
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
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
Impacted products
Vendor Product Version
Smoothwall Express Affected: 0 , ≤ 3.1 Update 13 (custom)
Create a notification for this product.
Credits
Alex Williams from Pellera Technologies VulnCheck
Show details on NVD website
To clipboard 

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CVE-2026-27508 (GCVE-0-2026-27508)

Vulnerability from cvelistv5 – Published: 2026-03-30 16:51 – Updated: 2026-03-31 18:05
VLAI?
Title
Smoothwall Express < 3.1 Update 13 Reflected XSS in redirect.cgi via url Parameter
Summary
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.
Severity ?
5.1 (Medium)
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
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE
  • CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
Impacted products
Vendor Product Version
Smoothwall Express Affected: 0 , ≤ 3.1 Update 13 (custom)
Create a notification for this product.
Credits
Alex Williams from Pellera Technologies VulnCheck
Show details on NVD website
To clipboard 

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CVE-2026-26352 (GCVE-0-2026-26352)

Vulnerability from cvelistv5 – Published: 2026-03-30 16:49 – Updated: 2026-03-30 18:09
VLAI?
Title
Smoothwall Express < 3.1 Update 13 Stored XSS in vpnmain.cgi via VPN_IP Parameter
Summary
Smoothwall Express versions prior to 3.1 Update 13 contain a stored cross-site scripting vulnerability in the /cgi-bin/vpnmain.cgi script due to improper sanitation of the VPN_IP parameter. Authenticated attackers can inject arbitrary JavaScript through VPN configuration settings that executes when the affected page is viewed by other users.
Severity ?
5.1 (Medium)
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
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
Impacted products
Vendor Product Version
Smoothwall Express Affected: 0 , ≤ 3.1 Update 13 (custom)
Create a notification for this product.
Credits
Alex Williams from Pellera Technologies VulnCheck
Show details on NVD website
To clipboard 

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            "Recovery": "NOT_DEFINED",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
              "lang": "en",
              "type": "CWE"
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          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-30T16:50:41.422Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://community.smoothwall.org/forum/viewtopic.php?t=45095"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/smoothwall-express-stored-xss-in-vpnmain-cgi-via-vpn-ip-parameter"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Smoothwall Express \u003c 3.1 Update 13 Stored XSS in vpnmain.cgi via VPN_IP Parameter",
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      }
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  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-26352",
    "datePublished": "2026-03-30T16:49:16.761Z",
    "dateReserved": "2026-02-13T17:28:43.057Z",
    "dateUpdated": "2026-03-30T18:09:05.294Z",
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}