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CVE-2021-3159

20
FAUCET Score

CVE-2021-3159 is a stored cross-site scripting (XSS) vulnerability affecting Landray EKP V12.0.9.R.20160325, specifically within the /sys/attachment/uploaderServlet component. An authenticated attacker can exploit this by uploading specially crafted SVG, SHTML, or MHT files, leading to the execution of arbitrary web scripts or HTML in a victim's browser. The vulnerability has a CVSS score of 5.4 (Medium), indicating a network-based attack requiring low privileges and user interaction, with potential for low impact on confidentiality and integrity. Its EPSS score is very low, suggesting a low probability of exploitation in the wild. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, consistent with a large percentage of reported vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
12.0.9.r.20160325CPE matchmatch criteria
cpe:2.3:a:landray:landray_ekp:12.0.9.r.20160325:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
41.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 64th percentile among its peer group of 15,224 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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 / fa1c0n1/m01e-wiki/blob/main/my-vulns/landray-ekp.md
ExploitThird Party Advisory