FKIE_CVE-2026-49453

Vulnerability from fkie_nvd - Published: 2026-09-21 21:17 - Updated: 2026-09-22 14:17
Severity
7.0 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
Summary
Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.6.15 and 3.7.2, Joplin accepts synchronized resource metadata whose id or file_extension contains parent-directory or path-separator characters. BaseItem.unserialize() stores the unvalidated fields, resourceFilename() concatenates them into a destination path, and ResourceFetcher writes the attacker-controlled resource blob outside the resource directory during background synchronization. An attacker with write access to a configured sync target or shared notebook can create or overwrite files at an attacker-chosen existing path without user interaction. This issue is fixed in versions 3.6.15 and 3.7.2.
References
security-advisories@github.comhttps://github.com/laurent22/joplin/commit/18e0b08c282c89ae51612c4eff67af2a45ff5163
security-advisories@github.comhttps://github.com/laurent22/joplin/commit/50518073740c4501058e366300b42c2f1925cb05
security-advisories@github.comhttps://github.com/laurent22/joplin/pull/15540
security-advisories@github.comhttps://github.com/laurent22/joplin/pull/15672
security-advisories@github.comhttps://github.com/laurent22/joplin/security/advisories/GHSA-r24r-gp6h-cwgf
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/laurent22/joplin/security/advisories/GHSA-r24r-gp6h-cwgf
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "joplin",
          "vendor": "laurent22",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.6.15"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.7.0, \u003c 3.7.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.6.15 and 3.7.2, Joplin accepts synchronized resource metadata whose id or file_extension contains parent-directory or path-separator characters. BaseItem.unserialize() stores the unvalidated fields, resourceFilename() concatenates them into a destination path, and ResourceFetcher writes the attacker-controlled resource blob outside the resource directory during background synchronization. An attacker with write access to a configured sync target or shared notebook can create or overwrite files at an attacker-chosen existing path without user interaction. This issue is fixed in versions 3.6.15 and 3.7.2."
    }
  ],
  "id": "CVE-2026-49453",
  "lastModified": "2026-09-22T14:17:12.937",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 4.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-49453",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-22T13:31:17.285182Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-21T21:17:03.900",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laurent22/joplin/commit/18e0b08c282c89ae51612c4eff67af2a45ff5163"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laurent22/joplin/commit/50518073740c4501058e366300b42c2f1925cb05"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laurent22/joplin/pull/15540"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laurent22/joplin/pull/15672"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laurent22/joplin/security/advisories/GHSA-r24r-gp6h-cwgf"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/laurent22/joplin/security/advisories/GHSA-r24r-gp6h-cwgf"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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