# CVE-2026-101325: WordPress Newsletters plugin SQL injection via id parameter

Source: https://junglewise.ai/threats/cve-2026-101325-the-newsletters-plugin-for-wordpress-is-vulnerable-to-time-based  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-31. Updated: 2026-10-31  
License: CC BY 4.0 with a link back

CVE-2026-101325 · Severity: medium · CVSS 5.3 · Published 2026-10-31

The Newsletters plugin for WordPress, used to manage newsletter subscriptions and communications, is vulnerable to SQL injection attacks. Attackers with subscriber-level access can manipulate the 'id' parameter to extract sensitive data directly from the database, such as customer information or credentials. An attacker can obtain the necessary credentials to perform this attack simply by subscribing to the public newsletter form.

Vendors: [Wordpress](https://junglewise.ai/threats/vendors/wordpress).

## Quick answers

**Is CVE-2026-101325 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101325 being exploited in the wild.

**How severe is CVE-2026-101325?** Medium severity, with a CVSS score of 5.3, published 31 October 2026.

**Which products and versions are affected?** Wordpress Newsletters up to and including 4.18.1.

**Is there a fix for CVE-2026-101325?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-101325 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-101325?** Check whether you run Wordpress Newsletters at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The plugin fails to properly escape and prepare the 'id' parameter in SQL queries, allowing authenticated subscribers to inject arbitrary SQL code. The vulnerability exists because the ownership check only validates the subscriber_id field and does not confirm that the injected id parameter belongs to the authenticated subscriber. An attacker with subscriber-level access can leverage this time-based SQL injection to extract sensitive data from the database.

## Affected products

- WordPress Newsletters up to and including 4.18.1

## Timeline

- 2026-10-31: disclosed

## References

- [https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.18.1/includes/checkinit.php](https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.18.1/includes/checkinit.php)
- [https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.18.1/models/subscriber.php](https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.18.1/models/subscriber.php)