CVE-2023-3666

CVE-2023-3666 is a low-severity vulnerability in Maevelander Sticky Side Buttons with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Description

The Sticky Side Buttons WordPress plugin before 2.0.0 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Frequently asked questions

What is CVE-2023-3666?
The Sticky Side Buttons WordPress plugin before 2.0.0 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
How severe is CVE-2023-3666?
CVE-2023-3666 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-3666 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3666?
CVE-2023-3666 affects Maevelander Sticky Side Buttons. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3666?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-3666 have an EU (EUVD) identifier?
Yes. CVE-2023-3666 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-44310.
When was CVE-2023-3666 published?
CVE-2023-3666 was published on 2025-09-03 and last updated on 2026-06-17.

References

Affected products (1)

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