Vulnerability-Lookup

CNVD-2023-01488

Vulnerability from cnvd - Published: 2023-01-06

Title

Zettlr输入验证错误漏洞

Description

Zettlr是一款用于专业编辑Markdown文件的最全面的编辑器。 Zettlr 2.3.0版本存在输入验证错误漏洞，该漏洞源于应用程序无CSP策略，在渲染markdown文件之前未正确验证内容，攻击者可利用该漏洞查看本地的任意文件。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.zettlr.com/

Reference

https://github.com/Zettlr/Zettlr

Impacted products

Name
Zettlr Zettlr 2.3.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-40276",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-40276"
    }
  },
  "description": "Zettlr\u662f\u4e00\u6b3e\u7528\u4e8e\u4e13\u4e1a\u7f16\u8f91Markdown\u6587\u4ef6\u7684\u6700\u5168\u9762\u7684\u7f16\u8f91\u5668\u3002\n\nZettlr 2.3.0\u7248\u672c\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5e94\u7528\u7a0b\u5e8f\u65e0CSP\u7b56\u7565\uff0c\u5728\u6e32\u67d3markdown\u6587\u4ef6\u4e4b\u524d\u672a\u6b63\u786e\u9a8c\u8bc1\u5185\u5bb9\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u67e5\u770b\u672c\u5730\u7684\u4efb\u610f\u6587\u4ef6\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.zettlr.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2023-01488",
  "openTime": "2023-01-06",
  "products": {
    "product": "Zettlr Zettlr 2.3.0"
  },
  "referenceLink": "https://github.com/Zettlr/Zettlr",
  "serverity": "\u4e2d",
  "submitTime": "2022-11-07",
  "title": "Zettlr\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2022-40276 (GCVE-0-2022-40276)

Vulnerability from cvelistv5 – Published: 2022-11-03 00:00 – Updated: 2025-05-02 20:10

Summary

Zettlr version 2.3.0 allows an external attacker to remotely obtain arbitrary local files on any client that attempts to view a malicious markdown file through Zettlr. This is possible because the application does not have a CSP policy (or at least not strict enough) and/or does not properly validate the contents of markdown files before rendering them.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-02 20:09 UTC

CWE

Insecure or unset HTTP headers - Content-Security-Policy
CWE-20 - Improper Input Validation

Assigner

Fluid Attacks

References

2 references

URL	Tags
https://github.com/Zettlr/Zettlr
https://fluidattacks.com/advisories/avicii/

Impacted products

1 product

Vendor	Product	Version
n/a	Zettlr	Affected: 2.3.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:14:39.985Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/Zettlr/Zettlr"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://fluidattacks.com/advisories/avicii/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "NONE",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-40276",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-02T20:09:45.522339Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-20",
                "description": "CWE-20 Improper Input Validation",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-02T20:10:21.875Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Zettlr",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "2.3.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Zettlr version 2.3.0 allows an external attacker to remotely obtain arbitrary local files on any client that attempts to view a malicious markdown file through Zettlr. This is possible because the application does not have a CSP policy (or at least not strict enough) and/or does not properly validate the contents of markdown files before rendering them."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Insecure or unset HTTP headers - Content-Security-Policy",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-11-03T00:00:00.000Z",
        "orgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
        "shortName": "Fluid Attacks"
      },
      "references": [
        {
          "url": "https://github.com/Zettlr/Zettlr"
        },
        {
          "url": "https://fluidattacks.com/advisories/avicii/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
    "assignerShortName": "Fluid Attacks",
    "cveId": "CVE-2022-40276",
    "datePublished": "2022-11-03T00:00:00.000Z",
    "dateReserved": "2022-09-08T00:00:00.000Z",
    "dateUpdated": "2025-05-02T20:10:21.875Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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CNVD-2023-01488

CVE-2022-40276 (GCVE-0-2022-40276)

Tags

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