What’s Vulnerable › Vulnerabilities

CVE-2022-3838: WPUpper Share Buttons <= 3.42 - Admin+ Stored XSS

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-12-05 · updated 2026-06-17
• Weakness: CWE-79

Description

The WPUpper Share Buttons WordPress plugin through 3.42 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).

Affected products

• WPUpper Share Buttons: through 3.42

References

• https://wpscan.com/vulnerability/2dc82bd7-651f-4af0-ad2a-c20a38eea0d0
• https://wpscan.com/vulnerability/2dc82bd7-651f-4af0-ad2a-c20a38eea0d0

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