CVE-2021-39351

Name: CVE-2021-39351
Creator: NVD / NIST
Published: 2021-10-06T16:15:07.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.10%

Last modified Jun 17, 2026

CVE-2021-39351 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.10%

61.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Wp Bannerize Project	Wp Bannerize	>= 2.0.0, <= 4.0.2

References

https://plugins.trac.wordpress.org/browser/wp-bannerize/trunk/Classes/wpBannerizeAdmin.php#L1681Patch, Third Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39351Third Party Advisory
https://plugins.trac.wordpress.org/browser/wp-bannerize/trunk/Classes/wpBannerizeAdmin.php#L1681Patch, Third Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39351Third Party Advisory

Timeline

Published: Oct 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39351?

How severe is CVE-2021-39351?

CVE-2021-39351 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39351?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39351?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST