Critical severity · published Apr 12, 2021
CVE-2021-24228
Patreon WordPress < 1.7.2 - Reflected XSS on Login Form
9.6
CVSS
1.9%
EPSS
No
On KEV
Description
The Jetpack Scan team identified a Reflected Cross-Site Scripting in the Login Form of the Patreon WordPress plugin before 1.7.2. The WordPress login form (wp-login.php) is hooked by the plugin and offers to allow users to authenticate on the site using their Patreon account. Unfortunately, some of the error logging logic behind the scene allowed user-controlled input to be reflected on the login page, unsanitized.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PW
Patreon WordPress ·
1.7.2 before 1.7.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-24228
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-24228
Exploit
https://jetpack.com/2021/03/26/vulnerabilities-found-in-patreon-wordpress-plugin/
Third Party Advisory
https://wpscan.com/vulnerability/7a5fadb1-3f1c-4779-8ff6-356fccb5269b
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