Like Button Rating ♥ LikeBtn <= 2.6.64 - Unauthenticated Stored Cross-Site Scripting via 'Client-IP' Header
Strategic Overview
- Status
- Patched in 2.6.65
- Affected Plugin
- Like Button Rating ♥ LikeBtn
- Affected Version
<= 2.6.64- CVSS
- 4.7Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation
- CVE
CVE-2026-116552
At a glance
CVE-2026-116552 is a medium-severity Improper Neutralization of Input During Web Page Generation vulnerability in the Like Button Rating ♥ LikeBtn WordPress plugin, affecting versions <= 2.6.64. It carries a CVSS score of 4.7 (reachable over the network). Exploitation requires no authentication. The issue is fixed in version 2.6.65; sites on affected versions should update now. Disclosed October 2026, reported by GivMeInJ.
Vulnerability Overview
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.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, and no privileges on the target site.
CWE-79: Improper Neutralization of Input During Web Page Generation
Reaching this weakness in Like Button Rating ♥ LikeBtn <= 2.6.64 takes no account at all. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Like Button Rating ♥ LikeBtn the fix is 2.6.65: builds <= 2.6.64 are affected, anything from 2.6.65 onward is not.
Remediation
Update to version 2.6.65, or a newer patched version
How does WordSec protect against this?
Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Like Button Rating ♥ LikeBtn 2.6.65 closes this, and updating the plugin is the step that ends it.
- Firewall
- Login Security
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Like Button Rating ♥ LikeBtn
- 7.5CVE-2021-24150: Like Button Rating ♥ LikeBtn < 2.6.32 SSRF
CVE-2021-24150 - 6.5CVE-2026-78285: Like Button Rating ♥ LikeBtn <= 2.6.61 SQL Injection
CVE-2026-78285 - 6.5CVE-2021-24945: Like Button Rating Unauthorised Vote Export
CVE-2021-24945 - 6.5Like Button Rating <= 2.5.3 Arbitrary Settings Change
- 5.0CVE-2022-0745: Like Button Rating ♥ LikeBtn Arbitrary e-mail Sending
CVE-2022-0745
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C