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CVE-2018-16965

23
FAUCET Score

CVE-2018-16965 describes an HTML Injection and Stored Cross-Site Scripting (XSS) vulnerability affecting Zoho ManageEngine SupportCenter Plus versions prior to 8.1 Build 8109. This medium-severity vulnerability (CVSS 6.1) allows an unauthenticated attacker to inject malicious HTML and script code via the contractName parameter in the /ServiceContractDef.do endpoint, requiring user interaction. Successful exploitation could lead to information disclosure and limited data manipulation. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.1CPE matchmatch criteria
cpe:2.3:a:zohocorp:manageengine_supportcenter_plus:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.55%
Probability of exploitation in next 30 days
EPSS Percentile
83.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0255 is in the 92nd percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/149438/ManageEngine-SupportCenter-Plus-8.1.0-Cross-Site-Scripting.html
Third Party AdvisoryVDB Entry
pitstop.manageengine.com / portal/community/topic/supportcenter-plus-version-8-1-build-8109-released
Vendor Advisory