CVE-2021-24992: Buttonizer - Smart Floating Action Button < 2.5.5 - Admin+ Stored Cross-Site Scripting

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-12-27 · updated 2026-06-17
Weakness: CWE-79

Description

The Smart Floating / Sticky Buttons WordPress plugin before 2.5.5 does not sanitise and escape some parameter before outputting them in attributes and page, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Affected products

Smart Floating / Sticky Buttons – Call, Sharing, Chat Widgets & More – Buttonizer: before 2.5.5 — fixed in 2.5.5

How to fix

Upgrade to a fixed version: Smart Floating / Sticky Buttons – Call, Sharing, Chat Widgets & More – Buttonizer 2.5.5. Check the vendor advisory for mitigations.

References

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