Vulnerability-Lookup

GHSA-3GGM-C5M7-HFV5

Vulnerability from github – Published: 2026-05-29 21:31 – Updated: 2026-07-02 21:02

Summary

Spatie Laravel Media Library contains a file upload restriction bypass

Details

Spatie Laravel Media Library before version 11.23.0 contains a file upload restriction bypass in FileAdder::defaultSanitizer(). The sanitizer checks only the final filename suffix, allowing double-extension filenames such as shell.php.jpg to bypass the blocklist, with pathinfo() preserving inner .php stems in saved filenames. The blocklist also omits executable extensions including .php6, .shtml, and .htaccess. The double-extension bypass requires a legacy Apache AddHandler configuration to achieve PHP execution; the incomplete blocklist bypass does not.

Severity

8.8 (High)


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

8.7 (High)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "spatie/laravel-medialibrary"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "11.23.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48557"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-184"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-02T21:02:07Z",
    "nvd_published_at": "2026-05-29T20:16:28Z",
    "severity": "HIGH"
  },
  "details": "Spatie Laravel Media Library before version 11.23.0 contains a file upload restriction bypass in FileAdder::defaultSanitizer(). The sanitizer checks only the final filename suffix, allowing double-extension filenames such as shell.php.jpg to bypass the blocklist, with pathinfo() preserving inner .php stems in saved filenames. The blocklist also omits executable extensions including .php6, .shtml, and .htaccess. The double-extension bypass requires a legacy Apache AddHandler configuration to achieve PHP execution; the incomplete blocklist bypass does not.",
  "id": "GHSA-3ggm-c5m7-hfv5",
  "modified": "2026-07-02T21:02:07Z",
  "published": "2026-05-29T21:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48557"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spatie/laravel-medialibrary/pull/3939"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spatie/laravel-medialibrary/commit/608ea03703d3887c46434f5dda6af56de6346aba"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/spatie/laravel-medialibrary"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spatie/laravel-medialibrary/releases/tag/11.23.0"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/spatie-laravel-media-library-file-upload-restriction-bypass-via-fileadder-php"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Spatie Laravel Media Library contains a file upload restriction bypass"
}

CVE-2026-48557 (GCVE-0-2026-48557)

Vulnerability from cvelistv5 – Published: 2026-05-29 19:49 – Updated: 2026-07-28 01:49 X_Open Source

Title

Spatie Laravel Media Library < 11.23.0 File Upload Restriction Bypass via FileAdder.php

Summary

Severity

8.7 (High)


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

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-29 20:19 UTC

CWE

CWE-184 - Incomplete List of Disallowed Inputs

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://github.com/spatie/laravel-medialibrary/re…	release-notes
https://github.com/spatie/laravel-medialibrary/pu…	issue-tracking
https://github.com/spatie/laravel-medialibrary/co…	patch
https://www.vulncheck.com/advisories/spatie-larav…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
spatie	laravel-medialibrary	Affected: 0 , < 11.23.0 (semver) cpe:2.3:a:spatie:laravel_media_library:::::pro:::*

Date Public

2026-05-28 00:00

Credits

Xurshidbek Sobirjonov VulnCheck

Show details on NVD website

JSON

To clipboard

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      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-48557",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-29T20:19:41.731527Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-29T20:19:50.229Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "defaultStatus": "affected",
          "packageURL": "pkg:github/spatie/laravel-medialibrary",
          "product": "laravel-medialibrary",
          "repo": "https://github.com/spatie/laravel-medialibrary",
          "vendor": "spatie",
          "versions": [
            {
              "lessThan": "11.23.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:spatie:laravel_media_library:*:*:*:*:pro:*:*:*",
                  "versionEndExcluding": "11.23.0",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
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          "type": "finder",
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
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            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "valueDensity": "NOT_DEFINED",
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            "vulnAvailabilityImpact": "HIGH",
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            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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          "format": "CVSS",
          "scenarios": [
            {
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      ],
      "problemTypes": [
        {
          "descriptions": [
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      "providerMetadata": {
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      "references": [
        {
          "tags": [
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          ],
          "url": "https://github.com/spatie/laravel-medialibrary/releases/tag/11.23.0"
        },
        {
          "tags": [
            "issue-tracking"
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          "url": "https://github.com/spatie/laravel-medialibrary/pull/3939"
        },
        {
          "tags": [
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          "url": "https://github.com/spatie/laravel-medialibrary/commit/608ea03703d3887c46434f5dda6af56de6346aba"
        },
        {
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      ],
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    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-48557",
    "datePublished": "2026-05-29T19:49:15.604Z",
    "dateReserved": "2026-05-21T18:34:46.418Z",
    "dateUpdated": "2026-07-28T01:49:32.071Z",
    "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.

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.

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Action not permitted

GHSA-3GGM-C5M7-HFV5

CVE-2026-48557 (GCVE-0-2026-48557)

Tags

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Nomenclature

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