Medium 5.4Published Apr 2, 2026

CVE-2026-34815Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the DOMAIN parameter to /cgi-bin/smtpdomains.cgi.

Updated under an hour ago (2026-10-19 07:00 UTC)

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It affects endian firewall_community. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the DOMAIN parameter to /cgi-bin/smtpdomains.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page.

CVSS: 5.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jul 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

endian firewall_community endian:firewall_community	through 3.3.25	NVD

References

https://help.endian.com/hc/en-us/sections/360004371358-Communityrelease-notes
https://www.vulncheck.com/advisories/endian-firewall-cgi-bin-smtpdomains-cgi-domain-stored-cross-site-scriptingthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.