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CVE-2019-25379

Smoothwall Express cross-site scripting (XSS)

7.2 HIGHPublic exploitEPSS 0.27%
  1. Published16 Feb 2026

Description

Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains stored and reflected cross-site scripting vulnerabilities in the urlfilter.cgi endpoint that allow attackers to inject malicious scripts. Attackers can submit POST requests with script payloads in the REDIRECT_PAGE or CHILDREN parameters to execute arbitrary JavaScript in user browsers.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Affected products

Smoothwall Express3.1

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2019-25379 being actively exploited?

CVE-2019-25379 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.27%.

How severe is CVE-2019-25379?

CVE-2019-25379 has a CVSS 3.1 base score of 7.2, rated high. EPSS estimates a 0.27% probability of exploitation.

Which products are affected by CVE-2019-25379?

Affected products include Smoothwall Express.

How do I fix CVE-2019-25379?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2019-25379 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.