CVE-2026-116552

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 49/100
Published: 2026-10-30 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Network No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: Required
S: Changed
C: Low
I: Low
A: None

Description

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.

Affected Software (2)

Bug Bounty Relevance

49 / 100
✓ Network accessible
✓ No authentication

CVSS Score

4.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.31%
Raw Score 0.003070
Percentile 23.5%
Date 2026-10-31

Intelligence Sources

mitre ref →
nvd ref →