Vulnerability-Lookup

CVE-2026-14812 (GCVE-0-2026-14812)

Vulnerability from cvelistv5 – Published: 2026-08-06 16:52 – Updated: 2026-08-07 14:00

Title

Premium SEO - Unauthenticated Backdoor (Admin Creation / RCE / SSRF / Content Injection)

Summary

The Premium SEO WordPress plugin is malicious: it ships an unauthenticated backdoor that creates a hidden administrator account and, in some builds, also enables remote code execution, server-side request forgery and arbitrary front-end script/content injection, giving an unauthenticated attacker full control of the affected site.

Severity

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 14:00 UTC

CWE

CWE-912 Hidden Functionality
CWE-912 - Hidden Functionality

Assigner

WPScan mitre root

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/0115a640-7139-4e…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version	CPE status
Unknown	Premium SEO	Affected: 0 , ≤ * (custom)	guessed

Credits

Erwan LR (WPScan) WPScan

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-14812

Vulnerability from fkie_nvd - Published: 2026-08-06 22:16 - Updated: 2026-08-26 16:31

Severity

10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Summary

References

	URL	Tags
	contact@wpscan.com	https://wpscan.com/vulnerability/0115a640-7139-4ef9-81be-6ee5c755a601/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "Premium SEO",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "contact@wpscan.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Premium SEO WordPress plugin is malicious: it ships an unauthenticated backdoor that creates a hidden administrator account and, in some builds, also enables remote code execution, server-side request forgery and arbitrary front-end script/content injection, giving an unauthenticated attacker full control of the affected site."
    }
  ],
  "id": "CVE-2026-14812",
  "lastModified": "2026-08-26T16:31:16.753",
  "metrics": {
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.0,
        "source": "contact@wpscan.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
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          "timestamp": "2026-08-07T14:00:03.918291Z",
          "version": "2.0.3"
        }
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  "published": "2026-08-06T22:16:46.967",
  "references": [
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      "source": "contact@wpscan.com",
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}

GHSA-R59P-4MH6-5R64

Vulnerability from github – Published: 2026-08-07 00:31 – Updated: 2026-08-07 00:31

Details

Severity

10.0 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-14812"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-912"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-06T22:16:46Z",
    "severity": "CRITICAL"
  },
  "details": "The Premium SEO WordPress plugin is malicious: it ships an unauthenticated backdoor that creates a hidden administrator account and, in some builds, also enables remote code execution, server-side request forgery and arbitrary front-end script/content injection, giving an unauthenticated attacker full control of the affected site.",
  "id": "GHSA-r59p-4mh6-5r64",
  "modified": "2026-08-07T00:31:14Z",
  "published": "2026-08-07T00:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14812"
    },
    {
      "type": "WEB",
      "url": "https://wpscan.com/vulnerability/0115a640-7139-4ef9-81be-6ee5c755a601"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-14812 (GCVE-0-2026-14812)

FKIE_CVE-2026-14812

GHSA-R59P-4MH6-5R64

Tags

Sightings

Nomenclature

Related by attack behaviour