Vulnerability-Lookup

GHSA-MRPH-W4HH-GX3G

Vulnerability from github – Published: 2026-02-06 18:14 – Updated: 2026-02-06 19:06

Summary

Gogs has arbitrary file read/write via Path Traversal in Git hook editing

Details

Vulnerability Description

In the endpoint:

/username/reponame/settings/hooks/git/:name

the :name parameter:

Is URL-decoded by macaron routing, allowing decoded slashes (/)
Is then passed directly to:

git.Repository.Hook("custom_hooks", name)

which internally resolves the path as:

filepath.Join(repoPath, "custom_hooks", name)

Because no path sanitization is applied, supplying ../ sequences allows access to arbitrary paths outside the repository.

As a Result:

GET: Arbitrary file contents are displayed in the hook edit page textarea (Local File Inclusion).
POST: Existing files can be overwritten with attacker-controlled content (Arbitrary File Write).

Attack Prerequisites

The attacker is an authenticated user
The attacker has Admin or higher privileges on the target repository
The attacker has the AllowGitHook permission (or is a site administrator)
The target file is readable/writable by the Gogs process OS permissions

Attack Scenario

An attacker (with AllowGitHook + repository Admin privileges) accesses the Git hook edit URL
A path containing ../ is supplied in :name, fully URL-encoded using %2f
The server resolves custom_hooks/../../... without validation
Arbitrary file contents are displayed and existing files can be overwritten

Potential Impact

Sensitive information disclosure: app.ini, databases, logs, environment variables, etc.
Configuration or data tampering: Overwriting existing files
Secondary impact: Extraction of SECRET_KEY and database credentials may allow token forging or further compromise

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.13.3"
      },
      "package": {
        "ecosystem": "Go",
        "name": "gogs.io/gogs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.13.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-23633"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-06T18:14:51Z",
    "nvd_published_at": "2026-02-06T18:15:56Z",
    "severity": "MODERATE"
  },
  "details": "## Vulnerability Description\n\nIn the endpoint:\n\n```\n/username/reponame/settings/hooks/git/:name\n```\n\nthe `:name` parameter:\n\n* Is URL-decoded by **macaron routing**, allowing decoded slashes (`/`)\n* Is then passed directly to:\n\n```go\ngit.Repository.Hook(\"custom_hooks\", name)\n```\n\nwhich internally resolves the path as:\n\n```go\nfilepath.Join(repoPath, \"custom_hooks\", name)\n```\n\nBecause no path sanitization is applied, supplying `../` sequences allows access to **arbitrary paths outside the repository**.\n\n### As a Result:\n\n* **GET:** Arbitrary file contents are displayed in the hook edit page textarea (**Local File Inclusion**).\n* **POST:** Existing files can be overwritten with attacker-controlled content (**Arbitrary File Write**).\n\n---\n\n## Attack Prerequisites\n\n* The attacker is an authenticated user\n* The attacker has **Admin or higher privileges** on the target repository\n* The attacker has the **AllowGitHook** permission (or is a site administrator)\n* The target file is readable/writable by the **Gogs process OS permissions**\n\n---\n\n## Attack Scenario\n\n1. An attacker (with AllowGitHook + repository Admin privileges) accesses the Git hook edit URL\n2. A path containing `../` is supplied in `:name`, fully URL-encoded using `%2f`\n3. The server resolves `custom_hooks/../../...` without validation\n4. Arbitrary file contents are displayed and existing files can be overwritten\n\n---\n\n## Potential Impact\n\n* **Sensitive information disclosure:** `app.ini`, databases, logs, environment variables, etc.\n* **Configuration or data tampering:** Overwriting existing files\n* **Secondary impact:** Extraction of `SECRET_KEY` and database credentials may allow token forging or further compromise",
  "id": "GHSA-mrph-w4hh-gx3g",
  "modified": "2026-02-06T19:06:58Z",
  "published": "2026-02-06T18:14:51Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/gogs/gogs/security/advisories/GHSA-mrph-w4hh-gx3g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23633"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gogs/gogs/commit/4894629903f9508fe85567c44f68804f008f1655"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/gogs/gogs"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gogs/gogs/releases/tag/v0.13.4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Gogs has arbitrary file read/write via Path Traversal in Git hook editing"
}

CVE-2026-23633 (GCVE-0-2026-23633)

Vulnerability from cvelistv5 – Published: 2026-02-06 17:46 – Updated: 2026-02-06 18:53

Title

Gogs has arbitrary file read/write via path traversal in Git hook editing

Summary

Gogs is an open source self-hosted Git service. In version 0.13.3 and prior, there is an arbitrary file read/write via path traversal in Git hook editing. This issue has been patched in versions 0.13.4 and 0.14.0+dev.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-06 18:53 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M mitre root Scorecard

References

1 reference

URL	Tags
https://github.com/gogs/gogs/security/advisories/…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
gogs	gogs	Affected: < 0.14.0+dev Affected: < 0.13.4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-23633",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-06T18:53:18.442069Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-06T18:53:26.328Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "gogs",
          "vendor": "gogs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.14.0+dev"
            },
            {
              "status": "affected",
              "version": "\u003c 0.13.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Gogs is an open source self-hosted Git service. In version 0.13.3 and prior, there is an arbitrary file read/write via path traversal in Git hook editing. This issue has been patched in versions 0.13.4 and 0.14.0+dev."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-06T17:46:59.683Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/gogs/gogs/security/advisories/GHSA-mrph-w4hh-gx3g",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/gogs/gogs/security/advisories/GHSA-mrph-w4hh-gx3g"
        }
      ],
      "source": {
        "advisory": "GHSA-mrph-w4hh-gx3g",
        "discovery": "UNKNOWN"
      },
      "title": "Gogs has arbitrary file read/write via path traversal in Git hook editing"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-23633",
    "datePublished": "2026-02-06T17:46:59.683Z",
    "dateReserved": "2026-01-14T16:08:37.483Z",
    "dateUpdated": "2026-02-06T18:53:26.328Z",
    "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.
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