CVE-2025-7969 (GCVE-0-2025-7969)
Vulnerability from cvelistv5 – Published: 2025-08-21 16:40 – Updated: 2025-12-03 21:06 Disputed
VLAI
EPSS
VEX
Title
Markdown-it 14.1.0 - Cross-site scripting (XSS)
Summary
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs.
This issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-21 17:22 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://fluidattacks.com/advisories/fito | third-party-advisory |
| https://github.com/markdown-it/markdown-it | product |
| https://github.com/markdown-it/markdown-it/issues/1122 |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| markdown-it | markdown-it |
Affected:
14.1.0
(custom)
cpe:2.3:a:markdown-it:markdown-it:14.1.0:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-7969",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-08-21T17:22:06.168622Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-08-21T17:31:23.103Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://fluidattacks.com/advisories/fito"
}
],
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-08-25T04:45:43.251Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://github.com/markdown-it/markdown-it/issues/1122"
}
],
"title": "CVE Program Container",
"x_generator": {
"engine": "ADPogram 0.0.1"
}
}
],
"cna": {
"affected": [
{
"collectionURL": "https://registry.npmjs.org",
"defaultStatus": "unaffected",
"packageName": "markdown-it",
"product": "markdown-it",
"programFiles": [
"lib/renderer.mjs"
],
"vendor": "markdown-it",
"versions": [
{
"status": "affected",
"version": "14.1.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:markdown-it:markdown-it:14.1.0:*:*:*:*:*:*:*",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027) vulnerability in markdown-it allows Cross-Site Scripting (XSS).\u003cp\u003e This vulnerability is associated with program files \u003ctt\u003elib/renderer.mjs\u003c/tt\u003e.\u003c/p\u003e\u003cp\u003eThis issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability.\u003c/p\u003e"
}
],
"value": "Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027) vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs.\n\nThis issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability."
}
],
"impacts": [
{
"capecId": "CAPEC-63",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-63 Cross-Site Scripting (XSS)"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-03T21:06:03.862Z",
"orgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
"shortName": "Fluid Attacks"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://fluidattacks.com/advisories/fito"
},
{
"tags": [
"product"
],
"url": "https://github.com/markdown-it/markdown-it"
}
],
"source": {
"discovery": "UNKNOWN"
},
"tags": [
"disputed"
],
"title": "Markdown-it 14.1.0 - Cross-site scripting (XSS)",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
"assignerShortName": "Fluid Attacks",
"cveId": "CVE-2025-7969",
"datePublished": "2025-08-21T16:40:05.915Z",
"dateReserved": "2025-07-21T18:41:55.203Z",
"dateUpdated": "2025-12-03T21:06:03.862Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-7969",
"date": "2026-09-18",
"epss": "0.00243",
"percentile": "0.15835"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"collectionURL": "https://registry.npmjs.org",
"defaultStatus": "unaffected",
"packageName": "markdown-it",
"product": "markdown-it",
"programFiles": [
"lib/renderer.mjs"
],
"vendor": "markdown-it",
"versions": [
{
"status": "affected",
"version": "14.1.0",
"versionType": "custom"
}
]
}
],
"source": "help@fluidattacks.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:markdown-it_project:markdown-it:14.1.0:*:*:*:*:*:*:*",
"matchCriteriaId": "99F1BF19-53BB-4262-AF71-F235E169F8CD",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [
{
"sourceIdentifier": "help@fluidattacks.com",
"tags": [
"disputed"
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027) vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs.\n\nThis issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability."
},
{
"lang": "es",
"value": "La vulnerabilidad de neutralizaci\u00f3n incorrecta de la entrada durante la generaci\u00f3n de p\u00e1ginas web (XSS o \"Cross-Site Scripting\") en markdown-it permite la ejecuci\u00f3n de Cross-Site Scripting (XSS). Esta vulnerabilidad est\u00e1 asociada con los archivos de programa lib/renderer.mjs. Este problema afecta a Markdown-it: 14.1.0."
}
],
"id": "CVE-2025-7969",
"lastModified": "2026-06-17T10:06:03.863",
"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": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "help@fluidattacks.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-7969",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-08-21T17:22:06.168622Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-08-21T17:15:32.893",
"references": [
{
"source": "help@fluidattacks.com",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://fluidattacks.com/advisories/fito"
},
{
"source": "help@fluidattacks.com",
"tags": [
"Product"
],
"url": "https://github.com/markdown-it/markdown-it"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/markdown-it/markdown-it/issues/1122"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://fluidattacks.com/advisories/fito"
}
],
"sourceIdentifier": "help@fluidattacks.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "help@fluidattacks.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T06:27:46+00:00",
"cve": "CVE-2025-7969",
"id": "CVE-2025-7969",
"initial_release_date": "2025-08-21T16:40:05.915000+00:00",
"product_status:known_affected": "9",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "markdown-it: Markdown-it Cross-site scripting",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-7969.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2025-09-01T23:41:19Z",
"cve": "CVE-2025-7969",
"id": "CVE-2025-7969",
"initial_release_date": "2025-08-21T23:24:04Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-7969",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-7969.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-08-25T04:45:43.251Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://github.com/markdown-it/markdown-it/issues/1122"
}
],
"title": "CVE Program Container",
"x_generator": {
"engine": "ADPogram 0.0.1"
}
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-7969",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-08-21T17:22:06.168622Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-08-21T17:22:08.233Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://fluidattacks.com/advisories/fito"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://registry.npmjs.org",
"defaultStatus": "unaffected",
"packageName": "markdown-it",
"product": "markdown-it",
"programFiles": [
"lib/renderer.mjs"
],
"vendor": "markdown-it",
"versions": [
{
"status": "affected",
"version": "14.1.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:markdown-it:markdown-it:14.1.0:*:*:*:*:*:*:*",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027) vulnerability in markdown-it allows Cross-Site Scripting (XSS).\u003cp\u003e This vulnerability is associated with program files \u003ctt\u003elib/renderer.mjs\u003c/tt\u003e.\u003c/p\u003e\u003cp\u003eThis issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability.\u003c/p\u003e"
}
],
"value": "Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027) vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs.\n\nThis issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability."
}
],
"impacts": [
{
"capecId": "CAPEC-63",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-63 Cross-Site Scripting (XSS)"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-03T21:06:03.862Z",
"orgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
"shortName": "Fluid Attacks"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://fluidattacks.com/advisories/fito"
},
{
"tags": [
"product"
],
"url": "https://github.com/markdown-it/markdown-it"
}
],
"source": {
"discovery": "UNKNOWN"
},
"tags": [
"disputed"
],
"title": "Markdown-it 14.1.0 - Cross-site scripting (XSS)",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
"assignerShortName": "Fluid Attacks",
"cveId": "CVE-2025-7969",
"datePublished": "2025-08-21T16:40:05.915Z",
"dateReserved": "2025-07-21T18:41:55.203Z",
"dateUpdated": "2025-12-03T21:06:03.862Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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…