Search criteria
3 vulnerabilities by zettlr
CVE-2022-40276 (GCVE-0-2022-40276)
Vulnerability from cvelistv5 – Published: 2022-11-03 00:00 – Updated: 2025-05-02 20:10
VLAI?
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)
CWE
- Insecure or unset HTTP headers - Content-Security-Policy
Assigner
References
{
"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"
}
CVE-2021-26835 (GCVE-0-2021-26835)
Vulnerability from cvelistv5 – Published: 2021-06-18 11:46 – Updated: 2024-08-03 20:33
VLAI?
Summary
No filtering of cross-site scripting (XSS) payloads in the markdown-editor in Zettlr 1.8.7 allows attackers to perform remote code execution via a crafted file.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T20:33:41.014Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/Zettlr/Zettlr/issues/1716"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/Zettlr/Zettlr/releases/tag/v1.8.9"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "No filtering of cross-site scripting (XSS) payloads in the markdown-editor in Zettlr 1.8.7 allows attackers to perform remote code execution via a crafted file."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-06-18T11:46:56",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Zettlr/Zettlr/issues/1716"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Zettlr/Zettlr/releases/tag/v1.8.9"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-26835",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "No filtering of cross-site scripting (XSS) payloads in the markdown-editor in Zettlr 1.8.7 allows attackers to perform remote code execution via a crafted file."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/Zettlr/Zettlr/issues/1716",
"refsource": "MISC",
"url": "https://github.com/Zettlr/Zettlr/issues/1716"
},
{
"name": "https://github.com/Zettlr/Zettlr/releases/tag/v1.8.9",
"refsource": "MISC",
"url": "https://github.com/Zettlr/Zettlr/releases/tag/v1.8.9"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-26835",
"datePublished": "2021-06-18T11:46:56",
"dateReserved": "2021-02-05T00:00:00",
"dateUpdated": "2024-08-03T20:33:41.014Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-20727 (GCVE-0-2021-20727)
Vulnerability from cvelistv5 – Published: 2021-05-27 08:05 – Updated: 2024-08-03 17:53
VLAI?
Summary
Cross-site scripting vulnerability in Zettlr from 0.20.0 to 1.8.8 allows an attacker to execute an arbitrary script by loading a file or code snippet containing an invalid iframe into Zettlr.
Severity ?
No CVSS data available.
CWE
- Cross-site scripting
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Hendrik Erz | Zettlr |
Affected:
from 0.20.0 to 1.8.8
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T17:53:21.783Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.zettlr.com/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/Zettlr/Zettlr"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://jvn.jp/en/jp/JVN98239374/index.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "Zettlr",
"vendor": "Hendrik Erz",
"versions": [
{
"status": "affected",
"version": "from 0.20.0 to 1.8.8"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Cross-site scripting vulnerability in Zettlr from 0.20.0 to 1.8.8 allows an attacker to execute an arbitrary script by loading a file or code snippet containing an invalid iframe into Zettlr."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Cross-site scripting",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-05-27T08:05:14",
"orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"shortName": "jpcert"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.zettlr.com/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Zettlr/Zettlr"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://jvn.jp/en/jp/JVN98239374/index.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "vultures@jpcert.or.jp",
"ID": "CVE-2021-20727",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Zettlr",
"version": {
"version_data": [
{
"version_value": "from 0.20.0 to 1.8.8"
}
]
}
}
]
},
"vendor_name": "Hendrik Erz"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Cross-site scripting vulnerability in Zettlr from 0.20.0 to 1.8.8 allows an attacker to execute an arbitrary script by loading a file or code snippet containing an invalid iframe into Zettlr."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Cross-site scripting"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.zettlr.com/",
"refsource": "MISC",
"url": "https://www.zettlr.com/"
},
{
"name": "https://github.com/Zettlr/Zettlr",
"refsource": "MISC",
"url": "https://github.com/Zettlr/Zettlr"
},
{
"name": "https://jvn.jp/en/jp/JVN98239374/index.html",
"refsource": "MISC",
"url": "https://jvn.jp/en/jp/JVN98239374/index.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"assignerShortName": "jpcert",
"cveId": "CVE-2021-20727",
"datePublished": "2021-05-27T08:05:14",
"dateReserved": "2020-12-17T00:00:00",
"dateUpdated": "2024-08-03T17:53:21.783Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}