Smoothwall Express 3.1-SP4-polar-x86_64-update9 Proxy Configuration proxy.cgi cross site scripting

Summaryinfo

A vulnerability classified as problematic was found in Smoothwall Express 3.1-SP4-polar-x86_64-update9. This vulnerability affects unknown code of the file proxy.cgi of the component Proxy Configuration Handler. The manipulation of the argument CACHE_SIZE/MAX_SIZE/MIN_SIZE/MAX_OUTGOING_SIZE/MAX_INCOMING_SIZE results in cross site scripting. This vulnerability is identified as CVE-2019-25378. The attack can be executed remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Smoothwall Express 3.1-SP4-polar-x86_64-update9. Affected is an unknown function of the file proxy.cgi of the component Proxy Configuration Handler. The manipulation of the argument CACHE_SIZE/MAX_SIZE/MIN_SIZE/MAX_OUTGOING_SIZE/MAX_INCOMING_SIZE with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple cross-site scripting vulnerabilities in the proxy.cgi endpoint that allow attackers to inject malicious scripts through parameters including CACHE_SIZE, MAX_SIZE, MIN_SIZE, MAX_OUTGOING_SIZE, and MAX_INCOMING_SIZE. Attackers can submit POST requests with script payloads to store or reflect arbitrary JavaScript code that executes in users' browsers when the proxy configuration page is accessed.

The weakness was released by Ozer Goker as 46333. The advisory is available at exploit-db.com. This vulnerability is traded as CVE-2019-25378 since 02/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Smoothwall

Name

• Express

Version

• 3.1-SP4-polar-x86_64-update9

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CPE 2.2info

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