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CVE-2026-106603

Status: DeferredMedium (6.5)—

Authorization Bypass Through User-Controlled Key vulnerability in Groundhogg HollerBox holler-box allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects HollerBox: from n/a through 2.3.14.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

AV:N/AC:L/PR:N sin interacción permite explotación remota (T1190). CWE-639 (user-controlled key) permite modificación de datos (T1565.002) e interferencia con disponibilidad (T1499.004).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkEncrypt Sensitive Information

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Groundhogg — Holler BOXAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-106603",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-106603",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-08T15:28:33.910449Z"
        }
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    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "audit@patchstack.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "audit@patchstack.com",
      "affectedData": [
        {
          "vendor": "Groundhogg",
          "product": "HollerBox",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "2.3.15",
                  "status": "unaffected"
                }
              ],
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "2.3.14"
            }
          ],
          "packageName": "holler-box",
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected"
        }
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  ],
  "published": "2026-10-08T13:17:14.877",
  "references": [
    {
      "url": "https://patchstack.com/database/wordpress/plugin/holler-box/vulnerability/wordpress-hollerbox-plugin-2-3-14-insecure-direct-object-references-idor-vulnerability?_s_id=cve",
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      "lang": "en",
      "value": "Authorization Bypass Through User-Controlled Key vulnerability in Groundhogg HollerBox holler-box allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects HollerBox: from n/a through 2.3.14."
    }
  ],
  "lastModified": "2026-10-08T18:17:15.260",
  "sourceIdentifier": "audit@patchstack.com"
}