In Zoho ManageEngine SupportCenter Plus before 8.1 Build 8109, there is HTML Injection and Stored XSS via the /ServiceContractDef.do contra…

published 2018-09-21 8y ago modified 2026-06-17 4mo ago also EUVD-2018-8753

cvss: 6.1; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.5%; EPSS 2.5% chance of exploitation in 30 days, percentile 85%
public exploits: 0; none known

In Zoho ManageEngine SupportCenter Plus before 8.1 Build 8109, there is HTML Injection and Stored XSS via the /ServiceContractDef.do contractName parameter.

Patch / fix

fixed in 1

zohocorp manageengine_supportcenter_plus 8.1

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Exploit prediction

2.55% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

pitstop.manageengine.com /portal/community/topic/supportcenter-plus-version-8-1-build-8109-released
vendor-advisory
packetstormsecurity.com /files/149438/ManageEngine-SupportCenter-Plus-8.1.0-Cross-Site-Scripting.html
third-party-advisory, vdb-entry

Sources

CVE List CVE-2018-16965
NVD CVE-2018-16965

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.