CVE-2018-18985

Tridium Niagara Enterprise Security 2.3u1, all versions prior to 2.3.118.6, Niagara AX 3.8u4, all versions prior to 3.8.401.1, Niagara 4.4u2, all versions prior to 4.4.93.40.2, and Niagara 4.6, all versions prior to 4.6.96.28.4 a cross-site scripting vulnerability has been identified that may allow a remote attacker to inject code to some web pages affecting confidentiality.

Published: 2019-01-29 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-18985 is rated Low Risk (31.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.11%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-18985

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-22 0.21% 0.11% -0.09%
2 2025-11-21 0.11% 0.21% +0.09%
3 2025-11-18 — 0.11% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-18985

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.4 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.3 2.7 [email protected]
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2018-18985

Affected software / configurations for CVE-2018-18985

Vendor Product Version Raw CPE
tridium niagara < 4.4.93.40.2 cpe:2.3:a:tridium:niagara:*:*:*:*:*:*:*:*
tridium niagara >= 4.6, < 4.6.96.28.4 cpe:2.3:a:tridium:niagara:*:*:*:*:*:*:*:*
tridium niagara 4.4u2 cpe:2.3:a:tridium:niagara:4.4u2:*:*:*:*:*:*:*
tridium niagara_ax_framework < 3.8.401.1 cpe:2.3:a:tridium:niagara_ax_framework:*:*:*:*:*:*:*:*
tridium niagara_ax_framework 3.8u4 cpe:2.3:a:tridium:niagara_ax_framework:3.8u4:*:*:*:*:*:*:*
tridium niagara_enterprise_security < 2.3.118.6 cpe:2.3:a:tridium:niagara_enterprise_security:*:*:*:*:*:*:*:*
tridium niagara_enterprise_security 2.3u1 cpe:2.3:a:tridium:niagara_enterprise_security:2.3u1:*:*:*:*:*:*:*

References for CVE-2018-18985

URL Tags
http://www.securityfocus.com/bid/106530 Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-333-02 Third Party Advisory US Government Resource
cvelogic Threat Intelligence