PatchSiren cyber security CVE debrief
CVE-2026-3018 contrid CVE debrief
The Newsletters plugin for WordPress is vulnerable to time-based SQL Injection via the ‘wpmlsubscriber_id’ parameter in all versions up to, and including, 4.13 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
- Vendor
- contrid
- Product
- Newsletters
- CVSS
- HIGH 7.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-10
- Original CVE updated
- 2026-06-10
- Advisory published
- 2026-06-10
- Advisory updated
- 2026-06-10
Who should care
Users of the Newsletters plugin for WordPress, particularly those with versions up to and including 4.13, should be aware of this vulnerability and take necessary actions to protect their installations.
Technical summary
The vulnerability is caused by insufficient escaping on the user-supplied 'wpmlsubscriber_id' parameter and a lack of sufficient preparation on the existing SQL query. This allows unauthenticated attackers to inject additional SQL queries into existing ones, potentially leading to the extraction of sensitive information from the database.
Defensive priority
HIGH
Recommended defensive actions
- Update the Newsletters plugin to a version beyond 4.13.
- Implement additional security measures to monitor and restrict database queries.
Evidence notes
The CVE-2026-3018 record and associated details were obtained from official sources.
Official resources
CVE-2026-3018 was published on 2026-06-10T10:16:31.713Z and modified on 2026-06-10T18:35:12.690Z.