Vulnerability in Livehelperchat Live_helper_chat

CVE-2025-51397

A stored cross-site scripting (XSS) vulnerability in the Facebook Chat module of Live Helper Chat v4.60 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Surname parameter under the Recipien…

EPSS: 0.009 (54.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-51397?
CVE-2025-51397 is a medium-severity vulnerability in Livehelperchat Live_helper_chat, classified under CWE-779. CVSS score: 5.4/10. Published 2025-07-21.
How severe is CVE-2025-51397?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-51397 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.