CVE-2021-24782

Name: CVE-2021-24782
Creator: NVD / NIST
Published: 2021-12-13T11:15:08.493+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.60%

Last modified Jun 17, 2026

CVE-2021-24782 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. 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.. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.60%

44.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Flex Local Fonts Project	Flex Local Fonts	<= 1.0.0

References

https://wpscan.com/vulnerability/5cd846df-1d8b-488d-a691-b76850e8687aExploit, Third Party Advisory
https://wpscan.com/vulnerability/5cd846df-1d8b-488d-a691-b76850e8687aExploit, Third Party Advisory

Timeline

Published: Dec 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24782?

How severe is CVE-2021-24782?

CVE-2021-24782 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24782?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-24782?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST