What’s Vulnerable › Vulnerabilities

CVE-2021-24782: Flex Local Fonts <= 1.0.0 - 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: 2021-12-13 · updated 2026-06-17
• Weakness: CWE-79

Description

The Flex Local Fonts WordPress plugin through 1.0.0 does not escape the Class Name field when adding a font, which could allow hight privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Affected products

• Flex Local Fonts: through 1.0.0

References

• https://wpscan.com/vulnerability/5cd846df-1d8b-488d-a691-b76850e8687a
• https://wpscan.com/vulnerability/5cd846df-1d8b-488d-a691-b76850e8687a

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