CVE-2021-24977

Use Any Font < 6.2.1 - Unauthenticated Arbitrary CSS Appending

MEDIUM 6.1EPSS 1.5%

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

Affected: Use Any Font | Custom Font Uploader
CVSS v3.1 NVD: 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v2.0 NVD: 5.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
EPSS: 1.49% chance of exploitation in the next 30 days, 74th percentile
Published: 2022-02-28
Updated: 2024-08-03

Proof-of-concept exploits (1)

https://wpscan.com/vulnerability/739831e3-cdfb-4a22-9abf-6c594d7e3d75

References

CVE Record
NVD entry