CVE-2018-12998

A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before...

6.1 Medium

A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before build 123137, Network Configuration Manager before build 123128, OpManager before build 123148, OpUtils before build 123161, and Firewall Analyzer before build 123147 allows remote attackers to inject arbitrary web script or HTML via the parameter 'operation' to /servlet/com.adventnet.me.opmanager.servlet.FailOverHelperServlet.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

99.2%Up 97.8 points since Apr 14, 2021

What each source reports

NVD Score used 6.1

Record: CVE-2018-12998
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-12998
Updated: 2026-11-02

EUVDEUVD-2018-4949 No score

Record: EUVD-2018-4949
Updated: 2026-11-03

GitHub AdvisoriesGHSA-2pw8-r6j9-6vm6 6.1

A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before...

Record: GHSA-2pw8-r6j9-6vm6
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Nuclei	Zoho manageengine - Cross-Site Scripting

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, Nuclei, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-12998 is a medium vulnerability (CVSS 6.1) in Zohocorp Firewall Analyzer, published June 29, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 99.2%, the 99th percentile. No source names a fixed version.