CVE-2021-39351: WP Bannerize 2.0.0 - 4.0.2 - Authenticated SQL Injection

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-06 · updated 2026-06-17
Weakness: CWE-89

Description

The WP Bannerize WordPress plugin is vulnerable to authenticated SQL injection via the id parameter found in the ~/Classes/wpBannerizeAdmin.php file which allows attackers to exfiltrate sensitive information from vulnerable sites. This issue affects versions 2.0.0 - 4.0.2.

Affected products

WP Bannerize: from 2.0.0 through 4.0.2

References

https://plugins.trac.wordpress.org/browser/wp-bannerize/trunk/Classes/wpBannerizeAdmin.php#L1681
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39351
https://plugins.trac.wordpress.org/browser/wp-bannerize/trunk/Classes/wpBannerizeAdmin.php#L1681
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39351

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