Vulnerability-Lookup

CVE-2026-61448 (GCVE-0-2026-61448)

Vulnerability from cvelistv5 – Published: 2026-07-11 13:01 – Updated: 2026-07-14 22:03

Title

Parse Server 9.0.0 Stored XSS via malformed Content-Type

Summary

Parse Server is affected by a stored cross-site scripting (XSS) vulnerability in versions >= 9.0.0, < 9.10.0-alpha.2 and <= 8.6.83. When an uploaded file's extension is not recognized by the mime package, Parse Server preserves the client-supplied Content-Type. A malformed Content-Type that is not a valid type/subtype media type (e.g., 'image', 'image/', or 'image//svg+xml') bypasses the fileUpload.fileExtensions blocklist and is stored unchanged. On storage adapters that persist and serve the uploaded Content-Type (such as Amazon S3, Google Cloud Storage, or Azure Blob Storage), a browser cannot parse the malformed value and falls back to MIME-sniffing; a file whose body begins with HTML is rendered as HTML, executing embedded script in the application's origin against other users who open the file URL. The default GridFS storage adapter is not affected. Fixed in 9.10.0-alpha.2 and 8.6.84.

Severity

2.1 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-13 16:09 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7829 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/parse-community/parse-server/s…	vendor-advisory
https://www.vulncheck.com/advisories/parse-server…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version	CPE status
parse-community	parse-server	Affected: 9.0.0 , < 9.10.0-alpha.2 (semver) Unaffected: 9.10.0-alpha.2 (semver)	guessed
parse-community	parse-server	Affected: 0 , < 8.6.84 (semver) Unaffected: 8.6.84 (semver)	guessed

Date Public

2026-06-25 00:00

Credits

CyberKareem mtrezza

Show details on NVD website

JSON

To clipboard

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}

bit-parse-2026-61448

Vulnerability from bitnami_vulndb

Published

2026-09-25 15:21

Modified

2026-09-25 15:41

Summary

Parse Server 9.0.0 Stored XSS via malformed Content-Type

Details

Parse Server is affected by a stored cross-site scripting (XSS) vulnerability in versions >= 9.0.0, < 9.10.0 and <= 8.6.83. When an uploaded file's extension is not recognized by the mime package, Parse Server preserves the client-supplied Content-Type. A malformed Content-Type that is not a valid type/subtype media type (e.g., 'image', 'image/', or 'image//svg+xml') bypasses the fileUpload.fileExtensions blocklist and is stored unchanged. On storage adapters that persist and serve the uploaded Content-Type (such as Amazon S3, Google Cloud Storage, or Azure Blob Storage), a browser cannot parse the malformed value and falls back to MIME-sniffing; a file whose body begins with HTML is rendered as HTML, executing embedded script in the application's origin against other users who open the file URL. The default GridFS storage adapter is not affected. Fixed in 9.10.0 and 8.6.84.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "parse",
        "purl": "pkg:bitnami/parse"
      },
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        {
          "events": [
            {
              "introduced": "0"
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              "fixed": "8.6.84"
            },
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.10.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/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"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-61448"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*"
    ],
    "severity": "Low"
  },
  "details": "Parse Server is affected by a stored cross-site scripting (XSS) vulnerability in versions \u003e= 9.0.0, \u003c 9.10.0 and \u003c= 8.6.83. When an uploaded file\u0027s extension is not recognized by the mime package, Parse Server preserves the client-supplied Content-Type. A malformed Content-Type that is not a valid type/subtype media type (e.g., \u0027image\u0027, \u0027image/\u0027, or \u0027image//svg+xml\u0027) bypasses the fileUpload.fileExtensions blocklist and is stored unchanged. On storage adapters that persist and serve the uploaded Content-Type (such as Amazon S3, Google Cloud Storage, or Azure Blob Storage), a browser cannot parse the malformed value and falls back to MIME-sniffing; a file whose body begins with HTML is rendered as HTML, executing embedded script in the application\u0027s origin against other users who open the file URL. The default GridFS storage adapter is not affected. Fixed in 9.10.0 and 8.6.84.",
  "id": "BIT-parse-2026-61448",
  "modified": "2026-09-25T15:41:31.656Z",
  "published": "2026-09-25T15:21:57.058Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-r899-h629-j84r"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61448"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/parse-server-stored-xss-via-malformed-content-type"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Parse Server 9.0.0 Stored XSS via malformed Content-Type"
}

FKIE_CVE-2026-61448

Vulnerability from fkie_nvd - Published: 2026-07-11 14:16 - Updated: 2026-10-24 13:10

Severity

2.1 (Low) - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/parse-community/parse-server/security/advisories/GHSA-r899-h629-j84r
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/parse-server-stored-xss-via-malformed-content-type

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/parse-server",
          "product": "parse-server",
          "vendor": "parse-community",
          "versions": [
            {
              "lessThan": "9.10.0-alpha.2",
              "status": "affected",
              "version": "9.0.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "9.10.0-alpha.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/parse-server",
          "product": "parse-server",
          "vendor": "parse-community",
          "versions": [
            {
              "lessThan": "8.6.84",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "8.6.84",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Parse Server is affected by a stored cross-site scripting (XSS) vulnerability in versions \u003e= 9.0.0, \u003c 9.10.0-alpha.2 and \u003c= 8.6.83. When an uploaded file\u0027s extension is not recognized by the mime package, Parse Server preserves the client-supplied Content-Type. A malformed Content-Type that is not a valid type/subtype media type (e.g., \u0027image\u0027, \u0027image/\u0027, or \u0027image//svg+xml\u0027) bypasses the fileUpload.fileExtensions blocklist and is stored unchanged. On storage adapters that persist and serve the uploaded Content-Type (such as Amazon S3, Google Cloud Storage, or Azure Blob Storage), a browser cannot parse the malformed value and falls back to MIME-sniffing; a file whose body begins with HTML is rendered as HTML, executing embedded script in the application\u0027s origin against other users who open the file URL. The default GridFS storage adapter is not affected. Fixed in 9.10.0-alpha.2 and 8.6.84."
    },
    {
      "lang": "es",
      "value": "Parse Server se ve afectado por una vulnerabilidad de cross-site scripting (XSS) almacenado en las versiones \u003e= 9.0.0, anterior a 9.10.0-alpha.2 y menor o igual que 8.6.83. Cuando la extensi\u00f3n de un archivo subido no es reconocida por el paquete mime, Parse Server conserva el Content-Type proporcionado por el cliente. Un Content-Type malformado que no es un tipo de medio tipo/subtipo v\u00e1lido (p. ej., \u0027image\u0027, \u0027image/\u0027, o \u0027image//svg+xml\u0027) elude la lista de bloqueo fileUpload.fileExtensions y se almacena sin cambios. En los adaptadores de almacenamiento que persisten y sirven el Content-Type subido (como Amazon S3, Google Cloud Storage o Azure Blob Storage), un navegador no puede analizar el valor malformado y recurre al MIME-sniffing; un archivo cuyo cuerpo comienza con HTML se renderiza como HTML, ejecutando scripts incrustados en el origen de la aplicaci\u00f3n contra otros usuarios que abren la URL del archivo. El adaptador de almacenamiento GridFS predeterminado no se ve afectado. Corregido en 9.10.0-alpha.2 y 8.6.84."
    }
  ],
  "id": "CVE-2026-61448",
  "lastModified": "2026-10-24T13:10:00.147",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.1,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-61448",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-13T16:09:47.693724Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-11T14:16:23.510",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-r899-h629-j84r"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/parse-server-stored-xss-via-malformed-content-type"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-P6C5-MJGJ-M4RM

Vulnerability from github – Published: 2026-07-11 15:30 – Updated: 2026-10-29 16:33

Withdrawn 2026-10-29

Summary

Duplicate Advisory: Parse Server vulnerable to stored XSS via malformed Content-Type bypassing file upload extension blocklist

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-r899-h629-j84r. This link is maintained to preserve external references.

Original Description

Severity

2.1 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 9.10.0-alpha.2"
      },
      "package": {
        "ecosystem": "npm",
        "name": "parse-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "parse-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "8.6.83"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-434"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-29T16:33:41Z",
    "nvd_published_at": "2026-07-11T14:16:23Z",
    "severity": "LOW"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-r899-h629-j84r. This link is maintained to preserve external references.\n\n### Original Description\nParse Server is affected by a stored cross-site scripting (XSS) vulnerability in versions \u003e= 9.0.0, \u003c 9.10.0-alpha.2 and \u003c= 8.6.83. When an uploaded file\u0027s extension is not recognized by the mime package, Parse Server preserves the client-supplied Content-Type. A malformed Content-Type that is not a valid type/subtype media type (e.g., \u0027image\u0027, \u0027image/\u0027, or \u0027image//svg+xml\u0027) bypasses the fileUpload.fileExtensions blocklist and is stored unchanged. On storage adapters that persist and serve the uploaded Content-Type (such as Amazon S3, Google Cloud Storage, or Azure Blob Storage), a browser cannot parse the malformed value and falls back to MIME-sniffing; a file whose body begins with HTML is rendered as HTML, executing embedded script in the application\u0027s origin against other users who open the file URL. The default GridFS storage adapter is not affected. Fixed in 9.10.0-alpha.2 and 8.6.84.",
  "id": "GHSA-p6c5-mjgj-m4rm",
  "modified": "2026-10-29T16:33:41Z",
  "published": "2026-07-11T15:30:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-r899-h629-j84r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61448"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/parse-server-stored-xss-via-malformed-content-type"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/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"
    }
  ],
  "summary": "Duplicate Advisory: Parse Server vulnerable to stored XSS via malformed Content-Type bypassing file upload extension blocklist",
  "withdrawn": "2026-10-29T16:33:41Z"
}

GHSA-R899-H629-J84R

Vulnerability from github – Published: 2026-10-29 16:33 – Updated: 2026-10-29 16:33

Summary

Parse Server vulnerable to stored XSS via malformed Content-Type bypassing file upload extension blocklist

Details

Impact

Parse Server's file upload validation uses the fileUpload.fileExtensions option (enabled by default with a blocklist) to reject files that browsers may render as active content, mitigating stored cross-site scripting (XSS). When an uploaded file's extension is not recognized by the mime package, Parse Server preserves the client-supplied Content-Type and passes it to the storage adapter. A malformed Content-Type that is not a valid type/subtype media type — for example image (no subtype), image/ (empty subtype), or image//svg+xml (invalid token) — bypassed the blocklist and was stored unchanged. On storage adapters that persist and serve the uploaded Content-Type (such as Amazon S3, Google Cloud Storage, or Azure Blob Storage), a browser cannot parse the malformed Content-Type and falls back to MIME-sniffing the file content; a file whose body begins with HTML markup is then rendered as HTML, executing any embedded script in the application's origin. This allows a user permitted to upload files to store content that executes as script against other users who open the file URL. The default GridFS storage adapter is not affected, as it recomputes the Content-Type from the filename and serves files with X-Content-Type-Options: nosniff.

Patches

The file upload handler now validates that the client-supplied Content-Type is a well-formed media type (type/subtype with non-empty tokens per RFC 9110 §5.6.2) whenever the filename extension is not recognized by mime. Malformed values are rejected instead of being stored, while well-formed types — including custom or vendor types that the mime package does not recognize — continue to be accepted; only blocklisted subtypes are rejected.

Workarounds

Configure fileUpload.fileExtensions as a strict allowlist of only the extensions the application needs (for example ["^(png|jpe?g|gif|pdf)$"]). Additionally, serve uploaded files from a domain separate from the application so that any rendered content is isolated from the application's origin, and configure the storage/CDN layer to send X-Content-Type-Options: nosniff.

References

GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-r899-h629-j84r
Fix Parse Server 9: https://github.com/parse-community/parse-server/pull/10521
Fix Parse Server 8: https://github.com/parse-community/parse-server/pull/10523

Severity

2.1 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "parse-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.10.0-alpha.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.6.83"
      },
      "package": {
        "ecosystem": "npm",
        "name": "parse-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.6.84"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-61448"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-434"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-29T16:33:48Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "### Impact\n\nParse Server\u0027s file upload validation uses the `fileUpload.fileExtensions` option (enabled by default with a blocklist) to reject files that browsers may render as active content, mitigating stored cross-site scripting (XSS). When an uploaded file\u0027s extension is not recognized by the `mime` package, Parse Server preserves the client-supplied `Content-Type` and passes it to the storage adapter. A malformed `Content-Type` that is not a valid `type/subtype` media type \u2014 for example `image` (no subtype), `image/` (empty subtype), or `image//svg+xml` (invalid token) \u2014 bypassed the blocklist and was stored unchanged. On storage adapters that persist and serve the uploaded `Content-Type` (such as Amazon S3, Google Cloud Storage, or Azure Blob Storage), a browser cannot parse the malformed `Content-Type` and falls back to MIME-sniffing the file content; a file whose body begins with HTML markup is then rendered as HTML, executing any embedded script in the application\u0027s origin. This allows a user permitted to upload files to store content that executes as script against other users who open the file URL. The default GridFS storage adapter is not affected, as it recomputes the `Content-Type` from the filename and serves files with `X-Content-Type-Options: nosniff`.\n\n### Patches\n\nThe file upload handler now validates that the client-supplied `Content-Type` is a well-formed media type (`type/subtype` with non-empty tokens per RFC 9110 \u00a75.6.2) whenever the filename extension is not recognized by `mime`. Malformed values are rejected instead of being stored, while well-formed types \u2014 including custom or vendor types that the `mime` package does not recognize \u2014 continue to be accepted; only blocklisted subtypes are rejected.\n\n### Workarounds\n\nConfigure `fileUpload.fileExtensions` as a strict allowlist of only the extensions the application needs (for example `[\"^(png|jpe?g|gif|pdf)$\"]`). Additionally, serve uploaded files from a domain separate from the application so that any rendered content is isolated from the application\u0027s origin, and configure the storage/CDN layer to send `X-Content-Type-Options: nosniff`.\n\n### References\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-r899-h629-j84r\n- Fix Parse Server 9: https://github.com/parse-community/parse-server/pull/10521\n- Fix Parse Server 8: https://github.com/parse-community/parse-server/pull/10523",
  "id": "GHSA-r899-h629-j84r",
  "modified": "2026-10-29T16:33:48Z",
  "published": "2026-10-29T16:33:48Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-r899-h629-j84r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61448"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/parse-community/parse-server"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/parse-server-stored-xss-via-malformed-content-type"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Parse Server vulnerable to stored XSS via malformed Content-Type bypassing file upload extension blocklist"
}

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

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.

Action not permitted

CVE-2026-61448 (GCVE-0-2026-61448)

bit-parse-2026-61448

Vulnerability from bitnami_vulndb

FKIE_CVE-2026-61448

GHSA-P6C5-MJGJ-M4RM

Duplicate Advisory

Original Description

GHSA-R899-H629-J84R

Impact

Patches

Workarounds

References

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour