Vulnerability-Lookup

CVE-2025-67487 (GCVE-0-2025-67487)

Vulnerability from cvelistv5 – Published: 2025-12-09 03:35 – Updated: 2025-12-09 16:02

Title

Static Web Server is vulnerable to symbolic link Path Traversal

Summary

Static Web Server (SWS) is a production-ready web server suitable for static web files or assets. Versions 2.40.0 and below contain symbolic links (symlinks) which can be used to access files or directories outside the intended web root folder. SWS generally does not prevent symlinks from escaping the web server’s root directory. Therefore, if a malicious actor gains access to the web server’s root directory, they could create symlinks to access other files outside the designated web root folder either by URL or via the directory listing. This issue is fixed in version 2.40.1.

Severity

5.5 (Medium)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-09 14:23 UTC

CWE

CWE-61 - UNIX Symbolic Link (Symlink) Following

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7895 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/static-web-server/static-web-s…	x_refsource_CONFIRM
https://github.com/static-web-server/static-web-s…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
static-web-server	static-web-server	Affected: < 2.40.1	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-67487

Vulnerability from fkie_nvd - Published: 2025-12-09 16:18 - Updated: 2026-10-14 21:10

Severity

8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/static-web-server/static-web-server/commit/308f0d26ceb9c2c8bd219315d0f53914763357f2	Patch
security-advisories@github.com	https://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm	Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm	Vendor Advisory

Impacted products

	Vendor	Product	Version
	static-web-server	static_web_server	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "static-web-server",
          "vendor": "static-web-server",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.40.1"
            }
          ]
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      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
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              "matchCriteriaId": "779BD067-150E-4711-A274-040B483951C9",
              "versionEndIncluding": "2.40.0",
              "vulnerable": true
            }
          ],
          "negate": false,
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  ],
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    },
    {
      "lang": "es",
      "value": "Servidor Web Est\u00e1tico (SWS) es un servidor web listo para producci\u00f3n, adecuado para archivos web est\u00e1ticos o activos. Las versiones 2.40.0 e inferiores contienen enlaces simb\u00f3licos (symlinks) que pueden usarse para acceder a archivos o directorios fuera de la carpeta ra\u00edz web prevista. SWS generalmente no evita que los symlinks escapen del directorio ra\u00edz del servidor web. Por lo tanto, si un actor malicioso obtiene acceso al directorio ra\u00edz del servidor web, podr\u00eda crear symlinks para acceder a otros archivos fuera de la carpeta ra\u00edz web designada, ya sea por URL o a trav\u00e9s del listado de directorios. Este problema est\u00e1 solucionado en la versi\u00f3n 2.40.1."
    }
  ],
  "id": "CVE-2025-67487",
  "lastModified": "2026-10-14T21:10:00.183",
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          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "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": "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:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-67487",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-12-09T14:23:20.676609Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-09T16:18:24.053",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/static-web-server/static-web-server/commit/308f0d26ceb9c2c8bd219315d0f53914763357f2"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-61"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-459F-X8VQ-XJJM

Vulnerability from github – Published: 2025-12-08 22:18 – Updated: 2025-12-09 19:17

Summary

Static Web Server vulnerable to a symbolic link path traversal

Details

Summary

Symbolic links (symlinks) could be used to access files or directories outside the intended web root folder.

Details

SWS generally does not prevent symlinks from escaping the web server’s root directory. Therefore, if a malicious actor gains access to the web server’s root directory, they could create symlinks to access other files outside the designated web root folder either by URL or via the directory listing.

PoC

Serve a directory (web root) with SWS.
Create a symlink inside the web root that points to a file outside the web root. e.g. ln -s escape.txt $HOME/.bashrc
Open http://localhost/escape.txt in your browser.
The file content will be served.

Impact

Any web server that runs with elevated privileges (e.g., root/administrator) and handles user-supplied file uploads is primarily impacted.

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.40.0"
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "static-web-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.40.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-67487"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-61"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-08T22:18:00Z",
    "nvd_published_at": "2025-12-09T16:18:24Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nSymbolic links (_symlinks_) could be used to access files or directories outside the intended web root folder.\n\n### Details\n\nSWS generally does not prevent symlinks from escaping the web server\u2019s root directory. Therefore, if a malicious actor gains access to the web server\u2019s root directory, they could create symlinks to access other files outside the designated web root folder either by URL or via the directory listing.\n\n### PoC\n\n- Serve a directory (web root) with SWS.\n- Create a symlink inside the web root that points to a file outside the web root.\n  e.g. `ln -s escape.txt $HOME/.bashrc`\n- Open `http://localhost/escape.txt` in your browser.\n- The file content will be served.\n\n### Impact\n\nAny web server that runs with elevated privileges (e.g., root/administrator) and handles user-supplied file uploads is primarily impacted.",
  "id": "GHSA-459f-x8vq-xjjm",
  "modified": "2025-12-09T19:17:06Z",
  "published": "2025-12-08T22:18:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67487"
    },
    {
      "type": "WEB",
      "url": "https://github.com/static-web-server/static-web-server/commit/308f0d26ceb9c2c8bd219315d0f53914763357f2"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/static-web-server/static-web-server"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Static Web Server vulnerable to a symbolic link path traversal"
}

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.

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CVE-2025-67487 (GCVE-0-2025-67487)

FKIE_CVE-2025-67487

GHSA-459F-X8VQ-XJJM

Summary

Details

PoC

Impact

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour