Vulnerability-Lookup

GHSA-XQFJ-GWFJ-J97G

Vulnerability from github – Published: 2026-10-14 12:31 – Updated: 2026-10-14 12:31

Details

The public consent endpoint of JTL-Shop accepts arbitrary consent names from unauthenticated visitors without validating them against the configured consent items. These names are stored in the consent statistics and rendered without output encoding in the administration backend. An unauthenticated remote attacker can thereby inject script code that is executed in the browser session of an administrator viewing the consent statistics page, allowing actions to be performed with the administrator's privileges.

Severity

9.3 (Critical)


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

8.6 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-103904"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-14T11:16:58Z",
    "severity": "HIGH"
  },
  "details": "The public consent endpoint of JTL-Shop accepts arbitrary\nconsent names from unauthenticated visitors without validating\nthem against the configured consent items. These names are stored in the consent\nstatistics and rendered without output encoding in the administration\nbackend. An unauthenticated remote attacker can thereby inject script code that\nis executed in the browser session of an administrator viewing the consent\nstatistics page, allowing actions to be performed with the administrator\u0027s\nprivileges.",
  "id": "GHSA-xqfj-gwfj-j97g",
  "modified": "2026-10-14T12:31:33Z",
  "published": "2026-10-14T12:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103904"
    },
    {
      "type": "WEB",
      "url": "https://www.jtl-software.com/de/security/sicherheitsluecke-shop-xss"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/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-2026-103904 (GCVE-0-2026-103904)

Vulnerability from cvelistv5 – Published: 2026-10-14 10:23 – Updated: 2026-10-14 14:11

Title

Stored XSS Vulnerability in JTL-Shop

Summary

Severity

8.6 (High)


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

9.3 (Critical)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-14 14:11 UTC

CWE

CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')

Assigner

ENISA CNA under the ENISA root

CNA scorecard B 80/100 over 40 records in the last 180 days details

References

1 reference

URL	Tags
https://www.jtl-software.com/de/security/sicherhe…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
JTL-Software GmbH	JTL-Shop	Affected: 5.4.0 , < 5.6.5 (semver) Affected: 5.7.0 , < 5.7.5 (semver) Affected: 5.8.0 , < 5.8.2 (semver)

Credits

Lionel Machire (Metzler GmbH) and Lucas Nill

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-103904",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-14T14:11:13.541111Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-14T14:11:26.027Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "JTL-Shop",
          "vendor": "JTL-Software GmbH",
          "versions": [
            {
              "lessThan": "5.6.5",
              "status": "affected",
              "version": "5.4.0",
              "versionType": "semver"
            },
            {
              "lessThan": "5.7.5",
              "status": "affected",
              "version": "5.7.0",
              "versionType": "semver"
            },
            {
              "lessThan": "5.8.2",
              "status": "affected",
              "version": "5.8.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Lionel Machire (Metzler GmbH) and Lucas Nill"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe public consent endpoint of JTL-Shop accepts arbitrary\nconsent names from unauthenticated visitors without validating\nthem against the configured consent items. These names are stored in the consent\nstatistics and rendered without output encoding in the administration\nbackend. An unauthenticated remote attacker can thereby inject script code that\nis executed in the browser session of an administrator viewing the consent\nstatistics page, allowing actions to be performed with the administrator\u0027s\nprivileges.\u003c/p\u003e\n\n\n\n\n\n\n\n\n\n\u003cbr\u003e"
            }
          ],
          "value": "The public consent endpoint of JTL-Shop accepts arbitrary\nconsent names from unauthenticated visitors without validating\nthem against the configured consent items. These names are stored in the consent\nstatistics and rendered without output encoding in the administration\nbackend. An unauthenticated remote attacker can thereby inject script code that\nis executed in the browser session of an administrator viewing the consent\nstatistics page, allowing actions to be performed with the administrator\u0027s\nprivileges."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-14T10:23:29.429Z",
        "orgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
        "shortName": "ENISA"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.jtl-software.com/de/security/sicherheitsluecke-shop-xss/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Manual patches will be published for older unsupported versions (5.4.x\nand 5.5.x)."
            }
          ],
          "value": "Manual patches will be published for older unsupported versions (5.4.x\nand 5.5.x)."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Stored XSS Vulnerability in JTL-Shop",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
    "assignerShortName": "ENISA",
    "cveId": "CVE-2026-103904",
    "datePublished": "2026-10-14T10:23:29.429Z",
    "dateReserved": "2026-10-01T14:12:50.876Z",
    "dateUpdated": "2026-10-14T14:11:26.027Z",
    "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.

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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.
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