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WordPress plugin

WP Live Chat Support <= 8.1.9 — Stored Cross-Site Scripting

a72ce900-7999-45ee-a46a-6dd0a8f5931dPublished · Updated

Action summary

Affected: ≤8.1.9Update to 8.2.0 or newer

All remediation steps
Watch plugin
Severity
Medium5.4
CVSS
5.4
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:R User interaction
Required
S:C Scope
Changed
C:L Confidentiality
Low
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-79 Cross-Site Scripting
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

3CX Free Live Chat, Calls & Messaging wp-live-chat-support

  1. Affected≤ 8.1.9
  2. Patched in8.2.0

Update to 8.2.0 or newer.

You are affected if you run ≤ 8.1.9. Version 8.2.0 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under 3CX Free Live Chat, Calls & Messaging.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 8.2.0, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch 3CX Free Live Chat, Calls & Messaging to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Chevon Phillip.

The WP Live Chat Support for WordPress is vulnerable to Stored Cross-Site Scripting via the quick response and post functions in versions up to, and including, 8.1.9 due to insufficient input sanitization and output escaping. This makes it possible for subscriber-level attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in 3CX Free Live Chat, Calls & Messaging

All 15
More vulnerabilities in 3CX Free Live Chat, Calls & Messaging
SeverityVulnerabilityCVEPublished
High8.8Local File Inclusion
≤9.4.2Update to 9.4.3
—
Critical9.8Unprotected Functions
<8.0.33Update to 8.0.33
CVE-2019-12498
Medium6.1Unauthenticated Stored Cross-Site Scripting
≤8.0.26Update to 8.0.27
CVE-2019-14950
Medium6.1Cross-Site Scripting
<8.0.18Update to 8.0.18
CVE-2019-9913
Medium6.1Cross-Site Scripting
≤8.0.15Update to 8.0.16
CVE-2018-18460

Same weakness (Cross-Site Scripting)

All Cross-Site Scripting
Other Cross-Site Scripting vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 5.4

  2. Record last updated

Sources & licenses

Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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