SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-51400

A stored cross-site scripting (XSS) vulnerability in the Personal Canned Messages of Live Helper Chat v4.60 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload.

EXPLOITMEDIUM 5.4EPSS 0.97%

Does this matter?

A public exploit is published in Exploit-DB, so the technical barrier is gone even though the severity is medium and EPSS is 1.0%. Treat it as high on anything reachable from the internet.

Description

A stored cross-site scripting (XSS) vulnerability in the Personal Canned Messages of Live Helper Chat v4.60 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload.

CVSS 3.1
5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.97% probability · 62th percentile
Public exploits
1 in Exploit-DB · first 22 July 2025
CISA KEV
Not listed
Weakness
CWE-79
Affected
livehelperchat/live helper chat
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 0.97%27 October 202627 October 2026

EPSS 1.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-52379source ↗LiveHelperChat 4.61 - Stored Cross Site Scripting (XSS) via Personal Canned Messagesphp · Manojkumar Jwebapps22 July 2025no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.