Vulnerability-Lookup

GHSA-J4H7-4XW2-9GJJ

Vulnerability from github – Published: 2025-09-26 06:30 – Updated: 2025-09-26 06:30

Details

The Banhammer – Monitor Site Traffic, Block Bad Users and Bots plugin for WordPress is vulnerable to Blocking Bypass in all versions up to, and including, 3.4.8. This is due to a site-wide “secret key” being deterministically generated from a constant character set using md5() and base64_encode() and then stored in the banhammer_secret_key option. This makes it possible for unauthenticated attackers to bypass the plugin’s logging and blocking by appending a GET parameter named banhammer-process_{SECRET} where {SECRET} is the predictable value, thereby causing Banhammer to abort its protections for that request.

Severity

5.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-10745"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-330"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-26T04:15:55Z",
    "severity": "MODERATE"
  },
  "details": "The Banhammer \u2013 Monitor Site Traffic, Block Bad Users and Bots plugin for WordPress is vulnerable to Blocking Bypass in all versions up to, and including, 3.4.8. This is due to a site-wide \u201csecret key\u201d being deterministically generated from a constant character set using md5() and base64_encode() and then stored in the `banhammer_secret_key` option. This makes it possible for unauthenticated attackers to bypass the plugin\u2019s logging and blocking by appending a GET parameter named `banhammer-process_{SECRET}` where `{SECRET}` is the predictable value, thereby causing Banhammer to abort its protections for that request.",
  "id": "GHSA-j4h7-4xw2-9gjj",
  "modified": "2025-09-26T06:30:49Z",
  "published": "2025-09-26T06:30:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10745"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/banhammer/trunk/inc/banhammer-core.php#L101"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/banhammer/trunk/inc/banhammer-functions.php#L336"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3365087%40banhammer\u0026new=3365087%40banhammer\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3365979%40banhammer\u0026new=3365979%40banhammer\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/97c46a13-6981-426f-b24a-c9820657042f?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-10745 (GCVE-0-2025-10745)

Vulnerability from cvelistv5 – Published: 2025-09-26 03:25 – Updated: 2026-04-08 17:10

Title

Banhammer – Monitor Site Traffic, Block Bad Users and Bots <= 3.4.8 - Unauthenticated Protection Mechanism Bypass

Summary

The Banhammer – Monitor Site Traffic, Block Bad Users and Bots plugin for WordPress is vulnerable to Blocking Bypass in all versions up to, and including, 3.4.8. This is due to a site-wide “secret key” being deterministically generated from a constant character set using md5() and base64_encode() and then stored in the `banhammer_secret_key` option. This makes it possible for unauthenticated attackers to bypass the plugin’s logging and blocking by appending a GET parameter named `banhammer-process_{SECRET}` where `{SECRET}` is the predictable value, thereby causing Banhammer to abort its protections for that request.

Severity

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-26 19:32 UTC

CWE

CWE-330 - Use of Insufficiently Random Values

Assigner

Wordfence CNA under the mitre root

CNA scorecard C 65/100 over 2304 records in the last 180 days details

References

5 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/banham…
https://plugins.trac.wordpress.org/browser/banham…
https://plugins.trac.wordpress.org/changeset?sfp_…
https://plugins.trac.wordpress.org/changeset?sfp_…

Impacted products

1 product

Vendor	Product	Version
specialk	Banhammer – Monitor Site Traffic, Block Bad Users and Bots	Affected: 0 , ≤ 3.4.8 (semver)

Credits

Jonas Benjamin Friedli

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-10745",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-26T19:32:14.193040Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-26T19:32:24.596Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Banhammer \u2013 Monitor Site Traffic, Block Bad Users and Bots",
          "vendor": "specialk",
          "versions": [
            {
              "lessThanOrEqual": "3.4.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Jonas Benjamin Friedli"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Banhammer \u2013 Monitor Site Traffic, Block Bad Users and Bots plugin for WordPress is vulnerable to Blocking Bypass in all versions up to, and including, 3.4.8. This is due to a site-wide \u201csecret key\u201d being deterministically generated from a constant character set using md5() and base64_encode() and then stored in the `banhammer_secret_key` option. This makes it possible for unauthenticated attackers to bypass the plugin\u2019s logging and blocking by appending a GET parameter named `banhammer-process_{SECRET}` where `{SECRET}` is the predictable value, thereby causing Banhammer to abort its protections for that request."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-330",
              "description": "CWE-330 Use of Insufficiently Random Values",
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      "providerMetadata": {
        "dateUpdated": "2026-04-08T17:10:32.674Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/97c46a13-6981-426f-b24a-c9820657042f?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/banhammer/trunk/inc/banhammer-functions.php#L336"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/banhammer/trunk/inc/banhammer-core.php#L101"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3365979%40banhammer\u0026new=3365979%40banhammer\u0026sfp_email=\u0026sfph_mail="
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3365087%40banhammer\u0026new=3365087%40banhammer\u0026sfp_email=\u0026sfph_mail="
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-09-19T20:59:34.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2025-09-25T14:27:24.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Banhammer \u2013 Monitor Site Traffic, Block Bad Users and Bots \u003c= 3.4.8 - Unauthenticated Protection Mechanism Bypass"
    }
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  "cveMetadata": {
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    "assignerShortName": "Wordfence",
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    "datePublished": "2025-09-26T03:25:34.436Z",
    "dateReserved": "2025-09-19T19:27:00.940Z",
    "dateUpdated": "2026-04-08T17:10:32.674Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

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