CVE-2020-9758Network attack vector

Account takeover via stored name-parameter script injection

Published Mar 9, 2020 · Updated Aug 4, 2024

Stored XSS in chat.php in LiveZilla Live Chat 8.0.1.3 allows remote attackers to capture helpdesk credentials and take over accounts. chat.php stores the name parameter so a helpdesk employee's later chat view executes its JavaScript and exposes lgn and psswrd values from mobile/chat autologin URLs. No authentication is required to submit the payload, but a helpdesk employee must load the affected chat view; multiple stored account credentials can be exposed.

CVSS severity9.6
Critical
EPSS probability2.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in chat.php in LiveZilla Live Chat 8.0.1.3 allows remote attackers to capture helpdesk credentials and take over accounts. chat.php stores the name parameter so a helpdesk employee's later chat view executes its JavaScript and exposes lgn and psswrd values from mobile/chat autologin URLs. No authentication is required to submit the payload, but a helpdesk employee must load the affected chat view; multiple stored account credentials can be exposed.

The record

CVE
CVE-2020-9758
Published
Mar 9, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 9, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
9.6NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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