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High

Groundhogg <= 4.5.14 - Unauthenticated Stored Cross-Site Scripting via 'ref' Parameter

Type: advisorySource: Official CVE List1 source record

The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ref' parameter in all versions up to, and including, 4.5.14 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Announced Source revision 1
Original source ↗

CVE-2026-18548

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-18548

Groundhogg — CRM, Newsletters, and Marketing Automation

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "trainingbusinesspros",
    "product": "Groundhogg — CRM, Newsletters, and Marketing Automation",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "4.5.14"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-18548

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#29826 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement