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CVE-2021-41086

19
FAUCET Score

CVE-2021-41086 is a DOM-based Cross-Site Scripting (XSS) vulnerability affecting jsuites, an open-source collection of JavaScript web components. This flaw allows attackers to inject malicious JavaScript if a user copies content from a malicious source and pastes it into the jsuites HTML editor, as the clipboard content is directly written to innerHTML. The vulnerability has a CVSS score of 5.4 (Medium), indicating it can be exploited over the network with low complexity, requiring user interaction, and potentially leading to limited confidentiality and integrity impacts. There is no evidence of active exploitation, nor are there publicly available exploit tools like Metasploit or Nuclei, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.9.11CPE matchmatch criteria
cpe:2.3:a:jsuites:jsuites:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.7HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 93rd percentile among its peer group of 15,239 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

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: jsuitesFixed in: 4.9.11

Vendor Advisories (1)

npmGHSA-qh7x-j4v8-qw5whigh

Clipboard-based XSS

Sep 22, 2021

References

github.com / jsuites/jsuites/commit/d47a6f4e143188dde2742f4cffd313e1068ad3b3
PatchThird Party Advisory
github.com / jsuites/jsuites/commit/fe1d3cc5e339f2f4da8ed1f9f42271fdf9cbd8d2
PatchThird Party Advisory
github.com / jsuites/jsuites/security/advisories/GHSA-qh7x-j4v8-qw5w
Third Party Advisory