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PatchSiren cyber security CVE debrief

CVE-2026-112852 ThemeREX Group CVE debrief

A PHP Object Injection vulnerability exists in the WordPress Helion theme, affecting versions up to and including 1.1.12. This issue, known as CVE-2026-112852, was published on October 23, 2026, and last modified on October 24, 2026. The vulnerability is caused by the deserialization of untrusted data, allowing for object injection. The CVSS score for this vulnerability is 8.1, indicating a high severity.

Vendor
ThemeREX Group
Product
Helion
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-23
Original CVE updated
2026-10-24
Advisory published
2026-10-23
Advisory updated
2026-10-24

Who should care

Defenders and administrators using the Helion theme in WordPress installations should be aware of this vulnerability and take necessary actions to mitigate it.

Why it matters

CVE-2026-112852 is a high-severity vulnerability in the WordPress Helion theme that could lead to code execution and data compromise. Defenders should prioritize patching or mitigating this vulnerability.

  • Potential code execution through object injection
  • Elevation of privileges through deserialization of untrusted data
  • Data tampering or unauthorized access

Technical summary

The vulnerability exists due to the deserialization of untrusted data in the Helion theme, allowing for object injection. This could potentially lead to code execution. The issue affects versions up to and including 1.1.12 of the Helion theme in WordPress installations. Defenders should be aware of the potential for code execution and data compromise, and prioritize patching or mitigating this vulnerability, especially in environments where the Helion theme is used.

Defensive priority

Defenders should prioritize patching or mitigating this vulnerability, especially in environments where the Helion theme is used, as it could lead to potential code execution.

Recommended defensive actions

  • Patch or update the Helion theme to a version beyond 1.1.12
  • Implement input validation and sanitization to prevent object injection
  • Monitor for suspicious activity related to deserialization of untrusted data

Evidence notes

The CVE record and source item provide details about the vulnerability, including its existence in the Helion theme up to version 1.1.12 and the CVSS score of 8.1.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-112852 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-112852

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

  • CVE-2026-112852 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-112852

    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.