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Like Button Rating ♥ LikeBtn <= 2.6.64 — Unauthenticated Stored Cross-Site Scripting via 'Client-IP' Header

CVE-2026-116552Published · Updated

Action summary

Affected: ≤2.6.64Update to 2.6.65 or newer

All remediation steps
Watch plugin
Severity
Medium4.7
CVSS
4.7
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:H Attack complexity
High
PR:N Privileges required
None
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
No account needed
Exploit prediction (EPSS)
0.3% chance in 30 days23th percentile
CISA KEV
Not listed
On this page8

Am I affected?

Like Button Rating ♥ LikeBtn likebtn-like-button

  1. Affected≤ 2.6.64
  2. Patched in2.6.65

Update to 2.6.65 or newer.

You are affected if you run ≤ 2.6.64. Version 2.6.65 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Like Button Rating ♥ LikeBtn.
  • 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. Update to version 2.6.65, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Like Button Rating ♥ LikeBtn to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to GivMeInJ.

The Like Button Rating ♥ LikeBtn plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'HTTP_CLIENT_IP (Client-IP header)' parameter in all versions up to, and including, 2.6.64 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. Successful exploitation requires the site administrator to have disabled the default 'Be GDPR compliant' option, which would otherwise hash stored IP values and neutralize the payload. Successful exploitation additionally requires an action by an administrator — the attacker cannot trigger the vulnerability on their own.

Exploits & references

Proof-of-concept & detection

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

Advisories & patches

More in Like Button Rating ♥ LikeBtn

All 7
More vulnerabilities in Like Button Rating ♥ LikeBtn
SeverityVulnerabilityCVEPublished
Medium6.5Authenticated (Subscriber+) SQL Injection
≤2.6.61Update to 2.6.62
CVE-2026-78285
Medium6.1Cross-Site Request Forgery
≤2.6.53Update to 2.6.54
CVE-2024-44064
Medium5.0Arbitrary e-mail Sending
≤2.6.44Update to 2.6.45
CVE-2022-0745
Medium6.5Unauthorised Vote Export to Email & IP Addresses Disclosure
≤2.6.37Update to 2.6.38
CVE-2021-24945
High7.5Server-Side Request Forgery
<2.6.32Update to 2.6.32
CVE-2021-24150

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 4.7

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
EPSS
Exploit Prediction Scoring System by FIRST.org.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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