CVE-2021-24229

Public Exploit
Patreon WordPress < 1.7.2 - Reflected XSS on patreon_save_attachment_patreon_level AJAX action

Description

The Jetpack Scan team identified a Reflected Cross-Site Scripting via the patreon_save_attachment_patreon_level AJAX action of the Patreon WordPress plugin before 1.7.2. This AJAX hook is used to update the pledge level required by Patreon subscribers to access a given attachment. This action is accessible for user accounts with the ‘manage_options’ privilege (i.e.., only administrators). Unfortunately, one of the parameters used in this AJAX endpoint is not sanitized before being printed back to the user, so the risk it represents is the same as the previous XSS vulnerability.

Category

9.6
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.64%
Third-Party Advisory jetpack.com Third-Party Advisory wpscan.com
Affected: Unknown Patreon WordPress
Published at:
Updated at:

References

Link Tags
https://jetpack.com/2021/03/26/vulnerabilities-found-in-patreon-wordpress-plugin/ third party advisory exploit
https://wpscan.com/vulnerability/001755c4-add3-4566-a022-ab1f83546c1f third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-24229?
CVE-2021-24229 has been scored as a critical severity vulnerability.
How to fix CVE-2021-24229?
To fix CVE-2021-24229, 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-2021-24229 being actively exploited in the wild?
It is possible that CVE-2021-24229 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24229?
CVE-2021-24229 affects Unknown Patreon WordPress.
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