PT-2021-16277 · WordPress · Flex Local Fonts

Vishal Mohan · Published 2021-12-13 · Updated 2021-12-15 · CVE-2021-24782

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Flex Local Fonts WordPress plugin versions 1.0.0 and earlier

Description: The issue allows high privilege users to perform Cross-Site Scripting attacks due to the lack of escaping in the Class Name field when adding a font. This can occur even when the unfiltered html capability is disallowed.

Recommendations: For Flex Local Fonts WordPress plugin versions 1.0.0 and earlier, update to a version that properly escapes the Class Name field to prevent Cross-Site Scripting attacks. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24782

Affected Products

Flex Local Fonts

References · 4

• 🔥 https://wpscan.com/vulnerability/5cd846df-1d8b-488d-a691-b76850e8687a · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-24782 · Security Note
• https://osv.dev/vulnerability/CVE-2021-24782 · Vendor Advisory
• https://t.me/cibsecurity/33797 · Telegram Post