🛡️ CVE-2025-51397 — live-helper-chat

🟡 CVSS 5.4 — Medium ⚠️ Exploit Public CWE-779 NVD
5.4
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability none.

Affected software

CVE-2025-51397 is recorded against 1 package.

  • live-helper-chat (fixed in 4.61)

Timeline and source

Published on 21 July 2025 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
www.dropbox.com

Details

Severity MEDIUM
CVSS Score 5.4
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE CWE-779
Public Exploit ⚠️ Yes
Source NVD
Published 2025-07-21
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
live-helper-chat — 4.61

Similar Threats

Exploit Protection

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CVE-2025-51397 carries CVSS 5.4 Medium rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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