CVE-2021-24977

Public Exploit
Use Any Font < 6.2.1 - Unauthenticated Arbitrary CSS Appending

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

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 3.43% Top 15%
Third-Party Advisory wpscan.com
Affected: Unknown Use Any Font | Custom Font Uploader
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-24977?
CVE-2021-24977 has been scored as a medium severity vulnerability.
How to fix CVE-2021-24977?
To fix CVE-2021-24977, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24977 being actively exploited in the wild?
It is possible that CVE-2021-24977 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24977?
CVE-2021-24977 affects Unknown Use Any Font | Custom Font Uploader.
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