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

3.3LOW

Key Information:

Vendor

WordPress
Status
Sticky Side Buttons
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.

CVE-2023-3666 - Proof of Concept

References

https://wpscan.com/vulnerability/c37f1708-c154-41dc-9079-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
3.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Sayandeep Dutta
WPScan
JSON
.