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PatchSiren cyber security CVE debrief

CVE-2026-106597 ThemeGrill CVE debrief

The CVE-2026-106597 vulnerability affects the WordPress User Registration plugin, specifically versions up to and including 5.2.8. This issue is related to a Missing Authorization vulnerability, which could potentially allow unauthorized access due to incorrectly configured access control security levels. Defenders should assess their exposure and consider updating the plugin. Verification of plugin version and configuration is necessary to prevent potential unauthorized access. This requires review of the plugin version and configuration to ensure security levels are properly set. Additional information on exploitation or specific impacts is not provided, so verification and patch

Vendor
ThemeGrill
Product
User Registration
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-13
Original CVE updated
2026-10-13
Advisory published
2026-10-13
Advisory updated
2026-10-13

Who should care

Defenders responsible for WordPress installations using the User Registration plugin, specifically those using versions up to and including 5.2.8, should assess their exposure and consider updating the plugin.

Why it matters

Defenders should care about CVE-2026-106597 because it affects the WordPress User Registration plugin, potentially allowing unauthorized access due to a Missing Authorization vulnerability. This requires verification of the plugin version and configuration to prevent exposure.

  • Verification of plugin version and configuration is necessary to prevent potential unauthorized access.

Technical summary

The vulnerability is a Missing Authorization issue in the WordPress User Registration plugin, affecting versions up to and including 5.2.8. This could potentially allow unauthorized access due to incorrectly configured access control security levels.

Defensive priority

Defenders should prioritize verifying the version of the User Registration plugin in use and ensuring it is updated to a version beyond 5.2.8 if possible, and assess the configuration of access control security levels.

Recommended defensive actions

  • Verify the version of the User Registration plugin in use
  • Update the plugin to a version beyond 5.2.8 if possible
  • Assess the configuration of access control security levels

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description and affected versions. However, additional information on exploitation or specific impacts is not provided in the corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-106597 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-106597

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

  • CVE-2026-106597 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-106597

    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.