WordPress security changelog
MEDIUM CVE-2021-24977 Analyzed

Use Any Font | Custom Font Uploader: Cross-site scripting

Use Any Font | Custom Font Uploader is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed.

CVE / CNA score 6.1 CVSS · contact@wpscan.com
NVD score 6.1 CVSS 3.1 · nvd@nist.gov
Component
Use Any Font | Custom Font Uploader
Plugin slug
use-any-font
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Feb 28, 2022
Weakness
CWE-862 — Missing Authorization

This CVE was published Feb 28, 2022 and is one of 3 known issues for this plugin.

Update, patch or deactivate.

Update Use Any Font | Custom Font Uploader to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The Use Any Font | Custom Font Uploader WordPress plugin before 6.2.1 does not have any authorisation checks when assigning a font, allowing unauthenticated users to sent arbitrary CSS which will then be processed by the frontend for all users. Due to the lack of sanitisation and escaping in the backend, it could also lead to Stored XSS issues

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

Primary and upstream sources