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Web Instant Messenger <= 1.1.2 and LocalWeb In One <= 1.6.4 — Stored Cross-Site Scripting

2f3328c2-290f-410b-a6c8-2825d415f511Published · Updated

Action summary

Web Instant Messenger: Affected: ≤1.1.2No patch available

LocalWeb All In One: Affected: ≤1.6.4Update to 1.6.5 or newer

What to do until a fix ships
Watch plugin
Severity
High7.2
CVSS
7.2
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:C Scope
Changed
C:L Confidentiality
Low
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-79 Cross-Site Scripting
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Web Instant Messenger web-instant-messenger

  1. Affected≤ 1.1.2
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 1.1.2. No fixed version has been released.

LocalWeb All In One lw-all-in-one

  1. Affected≤ 1.6.4
  2. Patched in1.6.5

Update to 1.6.5 or newer.

You are affected if you run ≤ 1.6.4. Version 1.6.5 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Web Instant Messenger.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  2. Update to version 1.6.5, or a newer patched version
  3. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  4. Watch Web Instant Messenger to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to R3N0.

The Web Instant Messenger and LocalWeb In One plugins for WordPress are vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.6.4 (NOTE: Web Instant Messenger's latest version 1.1.2 is unpatched) due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated 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

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 high, CVSS 7.2

  2. Record last updated

Sources & licenses

Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. 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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