CVE-2026-15383 — Blog Floating Button <= 1.4.20 - Unauthenticated Stored XSS via User-Agent Header
The Blog Floating Button WordPress plugin through 1.4.20 does not sanitize or escape the visitor User-Agent header, which it stores through an unauthenticated tracking REST endp…
Published: 2026-08-03 · CVSS: 6.1 · CVSS 3.1
The Blog Floating Button WordPress plugin through 1.4.20 does not sanitize or escape the visitor User-Agent header, which it stores through an unauthenticated tracking REST endpoint and later renders unescaped in an administrator report page. This allows an unauthenticated attacker to store a malicious script that executes in the session of any administrator who views the access report, leading to site takeover.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7