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CVE-2021-4050

22
FAUCET Score

CVE-2021-4050 describes a Cross-Site Scripting (XSS) vulnerability in livehelperchat, specifically affecting the live_helper_chat product. This medium-severity flaw (CVSS 6.1) allows an unauthenticated attacker to inject malicious scripts into web pages, requiring user interaction to trigger, potentially leading to information disclosure or defacement. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:livehelperchat:live_helper_chat:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
0.9
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.85%
Probability of exploitation in next 30 days
EPSS Percentile
54.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0085 is in the 64th percentile among its peer group of 26,234 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

Vendor Advisories (1)

composerGHSA-97cc-825c-399gmedium

Cross site scripting in remdex/livehelperchat

Dec 10, 2021

References

github.com / livehelperchat/livehelperchat/commit/0ce1dd2a13509747c240c8484228a5df8d6e03ec
PatchThird Party Advisory
huntr.dev / bounties/27eb39d7-7636-4c4b-922c-a2f8fbe1ba05
ExploitThird Party Advisory