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CVE-2021-4131

28
FAUCET Score

CVE-2021-4131 describes a Cross-Site Request Forgery (CSRF) vulnerability affecting livehelperchat's live_helper_chat product. This high-severity flaw, rated 8.8 CVSS, allows an unauthenticated attacker to achieve high impact on confidentiality, integrity, and availability through a low-complexity attack requiring user interaction. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0CPE matchmatch criteria
cpe:2.3:a:livehelperchat:live_helper_chat:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
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
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 44th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: remdex/livehelperchatFixed in: 3.91
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-hx77-5p88-f92rhigh

livehelperchat is vulnerable to Cross-Site Request Forgery (CSRF)

Jan 5, 2022

References

github.com / livehelperchat/livehelperchat/commit/3b5d0a8a43595a7f05f2a81b76623a8d7e5ad19f
PatchThird Party Advisory
huntr.dev / bounties/52dfac87-4fd3-4dfb-83d2-d39916764d43
ExploitThird Party Advisory