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CVE-2017-9451

21
FAUCET Score

CVE-2017-9451 is a Cross-Site Scripting (XSS) vulnerability in flatCore 1.4.6, specifically within the pages.edit_form.php component. This medium-severity vulnerability (CVSS 6.1) allows remote attackers to inject arbitrary JavaScript via the PATH_INFO in an acp.php URL due to improper sanitization of $_SERVER['PHP_SELF']. While it has a low EPSS score and no known exploit intelligence or active exploitation, successful attacks could lead to client-side data theft or defacement. There is no public exploit code available, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.6CPE matchmatch criteria
cpe:2.3:a:flatcore:flatcore:1.4.6:*:*:*:*:*:*:*

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
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 57th percentile among its peer group of 26,219 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / flatCore/flatCore-CMS/commit/f1b42b338693a9c240182e76ef2131057f2c2a87
Patch
github.com / flatCore/flatCore-CMS/issues/34
Issue TrackingThird Party Advisory