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PatchSiren cyber security CVE debrief

CVE-2026-62046 ThemeREX Group CVE debrief

A critical vulnerability was found in the WordPress Gutentype theme, versions up to and including 2.1.12. This issue allows for PHP Object Injection due to the deserialization of untrusted data. The vulnerability has a CVSS score of 9.8, indicating a high severity level. The vulnerability is considered critical and could potentially lead to significant impact if exploited, including potential code execution, possible data breaches, and required verification of patching or mitigation efforts. Defenders and administrators using the WordPress Gutentype theme, versions up to and including 2.1.12, should be aware of this vulnerability and take necessary actions to mitigate or patch it.

Vendor
ThemeREX Group
Product
Gutentype
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-10
Original CVE updated
2026-10-10
Advisory published
2026-10-10
Advisory updated
2026-10-10

Who should care

Defenders and administrators using the WordPress Gutentype theme, versions up to and including 2.1.12, should be aware of this vulnerability and take necessary actions to mitigate or patch it.

Why it matters

CVE-2026-62046 is a critical vulnerability in the WordPress Gutentype theme that requires immediate attention from defenders and administrators. The vulnerability allows for PHP Object Injection, which could lead to significant impact if exploited. Defenders should prioritize patching or mitigating this vulnerability and implement additional security measures to prevent exploitation.

  • Potential for code execution if exploited
  • Possible data breaches due to object injection
  • Required verification of patching or mitigation efforts
  • Need for monitoring and incident response planning

Technical summary

The vulnerability in the WordPress Gutentype theme, versions up to and including 2.1.12, allows for PHP Object Injection. This is due to the deserialization of untrusted data. The CVSS score for this vulnerability is 9.8, indicating a critical severity level. The vulnerability is considered critical and could potentially lead to significant impact if exploited.

Defensive priority

Defenders should prioritize patching or mitigating this vulnerability as it could lead to significant impact if exploited.

Recommended defensive actions

  • Patch or update the Gutentype theme to a version beyond 2.1.12
  • Implement input validation and sanitization to prevent object injection
  • Monitor for suspicious activity related to the Gutentype theme

Evidence notes

The vulnerability is described in the CVE record and the source item from cve_program_cvelist_v5. The information provided indicates a high severity level due to the CVSS score of 9.8.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-62046 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-62046

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

  • CVE-2026-62046 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-62046

    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.