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PatchSiren cyber security CVE debrief

CVE-2026-40726 ThemeGrill CVE debrief

CVE-2026-40726 is a HIGH severity vulnerability (CVSS Score: 8.2) in the User Registration Stripe plugin versions <= 1.3.14. This vulnerability involves unauthenticated broken access control, potentially allowing attackers to access sensitive user registration information. The vulnerability was published on June 17, 2026, and last modified on the same day. Organizations using this plugin should take immediate action to mitigate potential risks. The CVE record and NVD details provide further information on this vulnerability.

Vendor
ThemeGrill
Product
User Registration Stripe
CVSS
HIGH 8.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-17
Advisory published
2026-06-17
Advisory updated
2026-06-17

Who should care

Administrators and security teams using the User Registration Stripe plugin versions <= 1.3.14 should be aware of this vulnerability. Additionally, WordPress users and security professionals monitoring plugin vulnerabilities should take note.

Technical summary

CVE-2026-40726 is a HIGH severity vulnerability (CVSS Score: 8.2, CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N) in the User Registration Stripe plugin. The vulnerability is classified under CWE-862, indicating a broken access control issue. This allows unauthenticated attackers to potentially access sensitive user registration information.

Defensive priority

HIGH

Recommended defensive actions

  • Update the User Registration Stripe plugin to a version greater than 1.3.14.
  • Review and restrict access to user registration information.
  • Implement additional security measures to monitor and detect potential attacks.
  • Consider using a Web Application Firewall (WAF) to filter traffic.
  • Regularly update and patch all plugins and software.
  • Monitor for suspicious activity and implement incident response plans.

Evidence notes

The vulnerability information is based on data from the National Vulnerability Database (NVD) and Patchstack. The CVE record and NVD details provide further information on this vulnerability. [ref-4] provides mitigation details from Patchstack.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-40726 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-40726

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

  • CVE-2026-40726 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-40726

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

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.