Vulnerability-Lookup

GHSA-MF3P-7J87-6QR4

Vulnerability from github – Published: 2026-10-20 12:31 – Updated: 2026-10-20 12:31

Details

The extension hides the correct answer to each CAPTCHA inside the image data of the CAPTCHA itself. Anyone who can request a CAPTCHA image can read the answer from it and submit it, so automated clients can pass the challenge. This applies to the default configuration, because the audio feature that causes the answer to be embedded is enabled by default. Forms that rely on the CAPTCHA as their only protection against automated submissions are exposed to abuse by bots.

Severity

6.9 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-112067"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-656"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-20T10:17:03Z",
    "severity": "MODERATE"
  },
  "details": "The extension hides the correct answer to each CAPTCHA inside the image data of the CAPTCHA itself. Anyone who can request a CAPTCHA image can read the answer from it and submit it, so automated clients can pass the challenge. This applies to the default configuration, because the audio feature that causes the answer to be embedded is enabled by default. Forms that rely on the CAPTCHA as their only protection against automated submissions are exposed to abuse by bots.",
  "id": "GHSA-mf3p-7j87-6qr4",
  "modified": "2026-10-20T12:31:31Z",
  "published": "2026-10-20T12:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112067"
    },
    {
      "type": "WEB",
      "url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-030"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-112067 (GCVE-0-2026-112067)

Vulnerability from cvelistv5 – Published: 2026-10-20 09:30 – Updated: 2026-10-20 19:07

Title

Captcha Bypass in extension "Accessible Form Captcha" (bw_captcha)

Summary

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-20 19:07 UTC

CWE

CWE-804 - Guessable CAPTCHA
CWE-656 - Reliance on Security Through Obscurity

Assigner

TYPO3 CNA under the mitre root

CNA scorecard B 83/100 over 67 records in the last 180 days details

References

1 reference

URL	Tags
https://typo3.org/security/advisory/typo3-ext-sa-…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
TYPO3	Extension "Accessible Form Captcha"	Affected: 4.0.0 , < 5.4.2 (semver)

Date Public

2026-10-20 09:00

Credits

Sven Rothe Maik Schneider

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-112067",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-20T19:07:28.937445Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-20T19:07:39.136Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
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          "collectionURL": "https://packagist.org/",
          "defaultStatus": "unaffected",
          "packageName": "blueways/bw-captcha",
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          "vendor": "TYPO3",
          "versions": [
            {
              "lessThan": "5.4.2",
              "status": "affected",
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            }
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      ],
      "credits": [
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          "type": "reporter",
          "value": "Sven Rothe"
        },
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          "lang": "en",
          "type": "remediation developer",
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        }
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      "datePublic": "2026-10-20T09:00:00.000Z",
      "descriptions": [
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            }
          ],
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      ],
      "metrics": [
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          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
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            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
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            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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            {
              "cweId": "CWE-656",
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        "orgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
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      },
      "references": [
        {
          "tags": [
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          ],
          "url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-030"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Captcha Bypass in extension \"Accessible Form Captcha\" (bw_captcha)",
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  "cveMetadata": {
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    "datePublished": "2026-10-20T09:30:54.371Z",
    "dateReserved": "2026-10-18T12:08:05.799Z",
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    "state": "PUBLISHED"
  },
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}

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

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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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