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CVE-2018-16636

22
FAUCET Score

CVE-2018-16636 describes an HTML Injection vulnerability in Nucleus CMS version 3.70, specifically affecting the 'body' parameter of index.php. With a CVSS score of 6.5 (Medium), this vulnerability can be exploited over the network with low attack complexity, allowing an authenticated attacker to achieve high integrity impact without user interaction. Despite its potential for integrity compromise, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.70CPE matchmatch criteria
cpe:2.3:a:nucleuscms:nucleus_cms:3.70:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.02%
Probability of exploitation in next 30 days
EPSS Percentile
59.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0102 is in the 73rd percentile among its peer group of 21,939 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 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / NucleusCMS/NucleusCMS/issues/84
ExploitIssue TrackingThird Party Advisory
github.com / security-breachlock/CVE-2018-16636/blob/master/nucleus_html.pdf
ExploitThird Party Advisory