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What are the severity rating and CVSS score of CVE-2026-81660?

The vulnerability CVE-2026-81660 has a severity score of 8.8 out of 10.0, which is classified as HIGH severity.

Which products and vendors are affected by CVE-2026-81660?

This vulnerability affects Groundhogg — CRM, Newsletters, and Marketing Automation from Unknown.

How can I mitigate or patch CVE-2026-81660?

Consult the vendor's security advisory for details and patches.

CVE-2026-81660: CVE-2026-81660 Vulnerability (HIGH Severity, CVSS: 8.8)

Description

The Groundhogg — CRM, Newsletters, and Marketing Automation WordPress plugin before 4.5.13 does not validate or escape values submitted to some optional web form fields before storing them and outputting them back in an administrative area, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against high privilege users.

Executive Summary

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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Technical Details

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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Mitigations

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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References

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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Additional Metadata

{
  "score": "8.8",
  "pubDate": "2026-08-30T07:17:21.790Z",
  "pubdate": "2026-08-30T07:17:21.790Z"
}

Sceawere

CVE-2026-81660 Verified Sceawere Triage Sources: NVD / CISA KEV

Vulnerability Metadata

Narrative and Response

Description

Executive Summary

Technical Details

Mitigations

References

Additional Metadata