What’s Vulnerable › Vulnerabilities

CVE-2024-3920: Flattr <= 1.2.2 - Admin+ Stored XSS

• Severity: low (CVSS 3.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-05-23 · updated 2026-06-17
• Weakness: CWE-79

Description

The Flattr WordPress plugin through 1.2.2 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

• Flattr: through 1.2.2

References

• https://wpscan.com/vulnerability/2fb28c77-3c35-4a2f-91ed-823d0d011048/
• https://wpscan.com/vulnerability/2fb28c77-3c35-4a2f-91ed-823d0d011048/

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