XSS in Smoothwall Express
CVE-2019-25379
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (15.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Smoothwall Express — versions 3.1
- Smoothwall Express — versions 3.1
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/46333 (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.smoothwall.org (Product, product)
- www.vulncheck.com/advisories/smoothwall-express-urlfiltercgi-cross-site-scripti (Broken Link, third-party-advisory)
Frequently asked questions
- What is CVE-2019-25379?
- CVE-2019-25379 is a high-severity vulnerability in Smoothwall Express, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-02-16.
- How severe is CVE-2019-25379?
- High severity. CVSS v3 base score is 7.2 out of 10.