Stored Cross-Site Scripting in Sticky Side Buttons WordPress Plugin
CVE-2023-3666

Currently unrated

Key Information:

Vendor

WordPress

Vendor
CVE Published:
3 September 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-3666?

The Sticky Side Buttons WordPress plugin prior to version 2.0.0 is vulnerable to Stored Cross-Site Scripting due to inadequate sanitization and escaping of its settings. This flaw permits high privilege users, such as administrators, to execute XSS attacks, even if the unfiltered_html capability is not granted, particularly in multisite environments. Such vulnerabilities can severely compromise the integrity and security of web applications.

Affected Version(s)

Sticky Side Buttons 0 < 2.0.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Sayandeep Dutta
WPScan
.
CVE-2023-3666 : Stored Cross-Site Scripting in Sticky Side Buttons WordPress Plugin