What is CVE-2026-116552?

CVE-2026-116552 is a medium-severity vulnerability in Likebtn Like Button Rating ♥, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-10-30.

How severe is CVE-2026-116552?

Medium severity. CVSS v3 base score is 4.7 out of 10.

XSS in Likebtn Like Button Rating ♥

CVE-2026-116552

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-30 · last modified 2026-10-30.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Likebtn Like Button Rating ♥

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-116552?: CVE-2026-116552 is a medium-severity vulnerability in Likebtn Like Button Rating ♥, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-10-30.
How severe is CVE-2026-116552?: Medium severity. CVSS v3 base score is 4.7 out of 10.