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PatchSiren cyber security CVE debrief

CVE-2026-93940 ThemeREX Group CVE debrief

A critical vulnerability was found in the WordPress Greeny theme, versions up to and including 2.10.0. This issue allows for PHP Object Injection due to deserialization of untrusted data. The vulnerability has a CVSS score of 9.8, indicating a high severity level. Defenders should assess exposure and prioritize patching or mitigation. The vulnerability could lead to significant impact if exploited, including potential for arbitrary code execution, and possible impact on confidentiality, integrity, and availability.

Vendor
ThemeREX Group
Product
Greeny
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 responsible for WordPress installations using the Greeny theme, especially those with versions up to and including 2.10.0, should assess exposure and prioritize patching or mitigation.

Why it matters

CVE-2026-93940 is a critical vulnerability in the WordPress Greeny theme that could lead to significant impact if exploited. Defenders should prioritize patching or mitigation.

  • Potential for arbitrary code execution if exploited.
  • Possible impact on confidentiality, integrity, and availability.
  • Requires verification of affected versions and remediation status.
  • Defenders should prioritize patching or mitigating this vulnerability.

Technical summary

The Greeny theme for WordPress, versions up to and including 2.10.0, is vulnerable to PHP Object Injection. This is due to the deserialization of untrusted data. An attacker could potentially exploit this vulnerability to execute arbitrary code, leading to significant impact.

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 Greeny theme to a version beyond 2.10.0.
  • Implement input validation and sanitization to prevent object injection.
  • Monitor for suspicious activity and implement logging and monitoring.
  • Consider using a Web Application Firewall (WAF) to detect and prevent attacks.

Evidence notes

The vulnerability is described in the CVE Program record and the NVD vulnerability detail page. The source item provides additional information about the affected product and versions.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-93940 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-93940

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

  • CVE-2026-93940 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-93940

    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.