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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.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-3018 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-3018

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-3018 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-3018

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.