CVE-2024-21535 (GCVE-0-2024-21535)
Vulnerability from cvelistv5 – Published: 2024-10-15 05:00 – Updated: 2024-10-15 14:02
VLAI
EPSS
VEX
Summary
Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-15 13:54 UTC
CWE
- CWE-79 - Cross-site Scripting (XSS)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | markdown-to-jsx |
Affected:
0 , < 7.4.0
(semver)
|
||
| markdown-to-jsx | markdown-to-jsx |
Affected:
0 , < 7.4.0
(semver)
cpe:2.3:a:markdown-to-jsx:markdown-to-jsx:*:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:markdown-to-jsx:markdown-to-jsx:*:*:*:*:*:*:*:*"
],
"defaultStatus": "affected",
"product": "markdown-to-jsx",
"vendor": "markdown-to-jsx",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-21535",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-15T13:54:20.774016Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-15T14:02:35.726Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "markdown-to-jsx",
"vendor": "n/a",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Rustam Komildzhonov"
}
],
"descriptions": [
{
"lang": "en",
"value": "Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross-site Scripting (XSS)",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-10-15T05:00:03.815Z",
"orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"shortName": "snyk"
},
"references": [
{
"url": "https://security.snyk.io/vuln/SNYK-JS-MARKDOWNTOJSX-6258886"
},
{
"url": "https://github.com/quantizor/markdown-to-jsx/commit/8eb74da825c0d8d2e9508d73c672bcae36ba555a"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"assignerShortName": "snyk",
"cveId": "CVE-2024-21535",
"datePublished": "2024-10-15T05:00:03.815Z",
"dateReserved": "2023-12-22T12:33:20.123Z",
"dateUpdated": "2024-10-15T14:02:35.726Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2024-21535",
"date": "2026-09-18",
"epss": "0.00488",
"percentile": "0.41076"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:quantizor:markdown-to-jsx:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1CC356E7-712F-4A55-BCE1-0CE9C450AC06",
"versionEndExcluding": "7.4.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown."
},
{
"lang": "es",
"value": "Las versiones del paquete markdown-to-jsx anteriores a la 7.4.0 son vulnerables a ataques de Cross Site Scripting (XSS) a trav\u00e9s de la propiedad src debido a una desinfecci\u00f3n incorrecta de la entrada. Un atacante puede ejecutar c\u00f3digo arbitrario inyectando un elemento iframe malicioso en el paquete markdown."
}
],
"id": "CVE-2024-21535",
"lastModified": "2024-10-17T20:36:29.213",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.7,
"source": "report@snyk.io",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.7,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2024-10-15T05:15:11.530",
"references": [
{
"source": "report@snyk.io",
"tags": [
"Patch"
],
"url": "https://github.com/quantizor/markdown-to-jsx/commit/8eb74da825c0d8d2e9508d73c672bcae36ba555a"
},
{
"source": "report@snyk.io",
"tags": [
"Third Party Advisory"
],
"url": "https://security.snyk.io/vuln/SNYK-JS-MARKDOWNTOJSX-6258886"
}
],
"sourceIdentifier": "report@snyk.io",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "report@snyk.io",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "markdown-to-jsx",
"vendor": "n/a",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "report@snyk.io"
},
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:markdown-to-jsx:markdown-to-jsx:*:*:*:*:*:*:*:*"
],
"defaultStatus": "affected",
"product": "markdown-to-jsx",
"vendor": "markdown-to-jsx",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:quantizor:markdown-to-jsx:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1CC356E7-712F-4A55-BCE1-0CE9C450AC06",
"versionEndExcluding": "7.4.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown."
},
{
"lang": "es",
"value": "Las versiones del paquete markdown-to-jsx anteriores a la 7.4.0 son vulnerables a ataques de Cross Site Scripting (XSS) a trav\u00e9s de la propiedad src debido a una desinfecci\u00f3n incorrecta de la entrada. Un atacante puede ejecutar c\u00f3digo arbitrario inyectando un elemento iframe malicioso en el paquete markdown."
}
],
"id": "CVE-2024-21535",
"lastModified": "2026-06-17T07:09:41.770",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.7,
"source": "report@snyk.io",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.7,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-21535",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-15T13:54:20.774016Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-10-15T05:15:11.530",
"references": [
{
"source": "report@snyk.io",
"tags": [
"Patch"
],
"url": "https://github.com/quantizor/markdown-to-jsx/commit/8eb74da825c0d8d2e9508d73c672bcae36ba555a"
},
{
"source": "report@snyk.io",
"tags": [
"Third Party Advisory"
],
"url": "https://security.snyk.io/vuln/SNYK-JS-MARKDOWNTOJSX-6258886"
}
],
"sourceIdentifier": "report@snyk.io",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "report@snyk.io",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-09-17T09:15:48+00:00",
"cve": "CVE-2024-21535",
"id": "CVE-2024-21535",
"initial_release_date": "2024-10-15T05:00:03.815000+00:00",
"product_status:known_affected": "3",
"product_status:known_not_affected": "6",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "markdown-to-jsx: Cross-site Scripting vulnerability in markdown-to-jsx",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-21535.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2025-02-16T05:22:47Z",
"cve": "CVE-2024-21535",
"id": "CVE-2024-21535",
"initial_release_date": "2024-10-17T03:09:32Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-21535",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-21535.json",
"version": "5"
},
"vulnrichment": {
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:markdown-to-jsx:markdown-to-jsx:*:*:*:*:*:*:*:*"
],
"defaultStatus": "affected",
"product": "markdown-to-jsx",
"vendor": "markdown-to-jsx",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-21535",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-15T13:54:20.774016Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-15T14:02:29.656Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "markdown-to-jsx",
"vendor": "n/a",
"versions": [
{
"lessThan": "7.4.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Rustam Komildzhonov"
}
],
"descriptions": [
{
"lang": "en",
"value": "Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross-site Scripting (XSS)",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-10-15T05:00:03.815Z",
"orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"shortName": "snyk"
},
"references": [
{
"url": "https://security.snyk.io/vuln/SNYK-JS-MARKDOWNTOJSX-6258886"
},
{
"url": "https://github.com/quantizor/markdown-to-jsx/commit/8eb74da825c0d8d2e9508d73c672bcae36ba555a"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
"assignerShortName": "snyk",
"cveId": "CVE-2024-21535",
"datePublished": "2024-10-15T05:00:03.815Z",
"dateReserved": "2023-12-22T12:33:20.123Z",
"dateUpdated": "2024-10-15T14:02:35.726Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
Loading…
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.
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.
Loading…
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.
Loading…