CVE-2025-51397

Name: CVE-2025-51397
Creator: NVD / NIST
Published: 2025-07-21T19:15:31.073+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.85%

Last modified Jun 17, 2026

CVE-2025-51397 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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 Recipient' Lists.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.

Description

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 Recipient' Lists.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.85%

53.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-779

Affected Software

Vendor	Product	Versions
Livehelperchat	Live Helper Chat	<= 4.61

References

Timeline

Published: Jul 21, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-51397?

How severe is CVE-2025-51397?

CVE-2025-51397 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.

How do I fix CVE-2025-51397?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-51397?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST