CVE-2022-0253Public exploitNetwork attack vector

Stored XSS via Angular evaluation of names

Published Jan 17, 2022 · Updated Aug 2, 2024

Stored cross-site scripting in Live Helper Chat 3.91 and earlier allows remote authenticated users to execute script in other users' browsers. Webhook and saved-view names are HTML-escaped but remain inside Angular-managed elements, so Angular evaluates injected template expressions. An authenticated account able to name an affected object is required, and execution occurs when another user opens the corresponding view.

CVSS severity7.1
High
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Live Helper Chat 3.91 and earlier allows remote authenticated users to execute script in other users' browsers. Webhook and saved-view names are HTML-escaped but remain inside Angular-managed elements, so Angular evaluates injected template expressions. An authenticated account able to name an affected object is required, and execution occurs when another user opens the corresponding view.

The record

CVE
CVE-2022-0253
Published
Jan 17, 2022
Updated
Aug 2, 2024
Vendor
LiveHelperChat
Product
Live Helper Chat
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 17, 2022CVE 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=unspecified <=3.91

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LiveHelperChat · Live Helper Chatversion=unspecified <=3.91

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
7.1huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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