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PatchSiren cyber security CVE debrief

CVE-2026-49763 CRM Perks CVE debrief

CVE-2026-49763 is a critical vulnerability in the Integration for Contact Form 7 HubSpot plugin, with a CVSS score of 9.8. The vulnerability is caused by an unauthenticated PHP object injection in versions <= 1.3.7. This allows a remote attacker to inject PHP code, potentially leading to code execution, data breaches, and other malicious activities.

Vendor
CRM Perks
Product
Integration for Contact Form 7 HubSpot
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-07-08
Advisory published
2026-06-15
Advisory updated
2026-07-08

Who should care

Users of the Integration for Contact Form 7 HubSpot plugin, especially those using versions <= 1.3.7, should be aware of this vulnerability and take immediate action to mitigate the risk.

Technical summary

The vulnerability is caused by an unauthenticated PHP object injection in the Integration for Contact Form 7 HubSpot plugin. This allows a remote attacker to inject PHP code, potentially leading to code execution, data breaches, and other malicious activities.

Defensive priority

high

Recommended defensive actions

  • Update to a patched version of the plugin (>= 1.3.8) as soon as possible.
  • Review and monitor plugin usage and logs for suspicious activity.
  • Consider implementing additional security measures, such as web application firewalls and intrusion detection systems.

Evidence notes

The vulnerability was reported by Patchstack and is tracked under CVE-2026-49763.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-49763 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-49763

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

  • CVE-2026-49763 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-49763

    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.