CVE-2024-27516Public exploitNetwork attack vector

Authenticated code execution via FAQ search templates

Published Feb 28, 2024 · Updated Aug 2, 2024

Server-side template injection in Live Helper Chat before 4.34 allows remote authenticated users to execute code through FAQ search. The FAQ widget and online-user search templates stripped HTML tags but retained double-brace expressions in template-bound values. A low-permission account can reach the affected administrative search surface, enabling server-side code execution and sensitive-data access.

CVSS severity9.8
Critical
EPSS probability1.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in Live Helper Chat before 4.34 allows remote authenticated users to execute code through FAQ search. The FAQ widget and online-user search templates stripped HTML tags but retained double-brace expressions in template-bound values. A low-permission account can reach the affected administrative search surface, enabling server-side code execution and sensitive-data access.

The record

CVE
CVE-2024-27516
Published
Feb 28, 2024
Updated
Aug 2, 2024
Vendor
LiveHelperChat
Product
Live Helper Chat
Classifications
CWE-78, CAPEC-88, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.34

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LiveHelperChat · Live Helper Chatversion=0 <4.34

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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