EUVD-2026-18314Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the domain parameter to /manage/smtpscan/domainrouting/. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page.
AnalysisAI
Stored cross-site scripting in Endian Firewall 3.3.25 and prior allows authenticated attackers to inject arbitrary JavaScript via the domain parameter in the /manage/smtpscan/domainrouting/ endpoint, with execution when other authenticated users view the page. The vulnerability requires user interaction (page view) and authenticated access, resulting in a CVSS score of 5.1 with scope change and integrity impact to other users' sessions. No public exploit code or active exploitation has been identified at time of analysis.
Technical ContextAI
This is a stored (persistent) cross-site scripting vulnerability rooted in improper input validation and output encoding of the domain parameter in Endian Firewall's SMTP scan domain routing management interface. The CWE-79 classification indicates the application fails to neutralize user-supplied input before rendering it in HTML context, allowing attackers to inject malicious JavaScript that persists in the backend database. Endian Firewall is a unified threat management and firewall appliance; the vulnerability exists in the web-based management console accessible to authenticated administrators or operators. The affected parameter is stored server-side and executed in the browsers of other authenticated users accessing the same page, creating a secondary attack vector within the administrative interface.
RemediationAI
Upgrade Endian Firewall to a patched version released by Endian (version 3.3.26 or later if available). If a patch is not yet released, apply input validation and output encoding controls to the domain parameter in the /manage/smtpscan/domainrouting/ endpoint to prevent stored XSS; specifically, sanitize or reject special HTML characters and ensure all user-supplied data is properly HTML-encoded before rendering in the management interface. Monitor the Endian Community Help portal and VulnCheck advisory for official patch releases and apply them immediately upon availability. In the interim, restrict administrative access to trusted users and review access logs for unauthorized parameter manipulation.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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