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PatchSiren cyber security CVE debrief

CVE-2026-39596 Creative Themes CVE debrief

CVE-2026-39596 is a critical vulnerability in the Blocksy Companion Pro plugin, which allows unauthenticated SQL injection attacks. The vulnerability has a CVSS score of 9.3 and is considered critical. It was published on June 17, 2026, and last modified on the same day. The vendor and product information is not confirmed, but the vulnerability is reported by Patchstack. This vulnerability can allow attackers to inject malicious SQL code, potentially leading to data breaches and other security issues. Organizations using the Blocksy Companion Pro plugin should take immediate action to mitigate this vulnerability.

Vendor
Creative Themes
Product
Blocksy Companion Pro
CVSS
CRITICAL 9.3
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 users of the Blocksy Companion Pro plugin, especially those using versions before 2.1.29, should be aware of this vulnerability and take necessary actions to secure their installations. WordPress users, security teams, and IT professionals should also be informed about this critical vulnerability.

Technical summary

The CVE-2026-39596 vulnerability is an unauthenticated SQL injection issue in the Blocksy Companion Pro plugin. The vulnerability has a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L, indicating a high impact on confidentiality and a moderate attack complexity. The weakness is classified as CWE-89, which is related to improper neutralization of special elements used in an SQL command.

Defensive priority

critical

Recommended defensive actions

  • Update the Blocksy Companion Pro plugin to version 2.1.29 or later.
  • Implement a Web Application Firewall (WAF) to detect and prevent SQL injection attacks.
  • Regularly monitor plugin and theme updates for known vulnerabilities.
  • Use strong passwords and limit login attempts to prevent unauthorized access.
  • Perform regular security audits and vulnerability assessments.
  • Consider using a security plugin or service to monitor and protect your WordPress installation.

Evidence notes

The information provided is based on the NVD and CVE records, which are considered reliable sources for vulnerability information. The vulnerability is reported by Patchstack, a known security research firm. However, some details, such as the vendor and product information, are not confirmed.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-39596 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-39596

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

  • CVE-2026-39596 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-39596

    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.