CVE-2021-34628: Admin Custom Login <= 3.2.7 - Cross-Site Request Forgery to Stored Cross-Site Scripting

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-08-02 · updated 2026-06-17
Weakness: CWE-352

Description

The Admin Custom Login WordPress plugin is vulnerable to Cross-Site Request Forgery due to the loginbgSave action found in the ~/includes/Login-form-setting/Login-form-background.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.2.7.

Affected products

weblizar Admin Custom Login: through 3.2.7

References

https://plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.2.7/includes/login-form-setting/login-form-background.php#L686
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34628
https://plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.2.7/includes/login-form-setting/login-form-background.php#L686
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34628

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