169 lines
7.4 KiB
JSON
169 lines
7.4 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-5388",
|
|
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "VulnCheck",
|
|
"dateReserved": "2026-04-01T21:11:10.753Z",
|
|
"datePublished": "2026-08-23T13:34:09.169Z",
|
|
"dateUpdated": "2026-08-26T16:16:10.959Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"shortName": "VulnCheck",
|
|
"dateUpdated": "2026-08-23T13:34:09.169Z"
|
|
},
|
|
"datePublic": "2026-04-09T00:00:00.000Z",
|
|
"title": "justhtml before 1.15.0 Multiple Security Issues",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "justhtml before 1.15.0 contains multiple security issues in URL sanitization helpers (clean_url_value/clean_url_in_js_string), HTML serialization, Markdown passthrough (html_passthrough=True), and several custom sanitization-policy edge cases. Depending on configuration, an attacker can bypass sanitization to inject active HTML and JavaScript — for example via encoded javascript: URLs, backslash-based relative URLs resolved as remote hosts, markup-breaking programmatic element/attribute names or HTML comments, raw </textarea> reintroduction through Markdown passthrough, or preserved <style>/<meta http-equiv=refresh>/<base href> tags in custom policies. Most custom-policy issues do not affect the default sanitize=True configuration; they primarily affect helper APIs, programmatic DOM construction, html_passthrough=True, and custom policies/transform pipelines."
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"description": "Improper Input Validation",
|
|
"cweId": "CWE-20",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"vendor": "EmilStenstrom",
|
|
"product": "justhtml",
|
|
"defaultStatus": "unaffected",
|
|
"packageURL": "pkg:pypi/justhtml",
|
|
"versions": [
|
|
{
|
|
"version": "0",
|
|
"status": "affected",
|
|
"versionType": "semver",
|
|
"lessThan": "1.15.0"
|
|
},
|
|
{
|
|
"version": "1.15.0",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV4_0": {
|
|
"Automatable": "NOT_DEFINED",
|
|
"Recovery": "NOT_DEFINED",
|
|
"Safety": "NOT_DEFINED",
|
|
"attackComplexity": "LOW",
|
|
"attackRequirements": "NONE",
|
|
"attackVector": "NETWORK",
|
|
"baseScore": 9.3,
|
|
"baseSeverity": "CRITICAL",
|
|
"exploitMaturity": "NOT_DEFINED",
|
|
"privilegesRequired": "NONE",
|
|
"providerUrgency": "NOT_DEFINED",
|
|
"subAvailabilityImpact": "NONE",
|
|
"subConfidentialityImpact": "NONE",
|
|
"subIntegrityImpact": "NONE",
|
|
"userInteraction": "NONE",
|
|
"valueDensity": "NOT_DEFINED",
|
|
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
|
|
"version": "4.0",
|
|
"vulnAvailabilityImpact": "HIGH",
|
|
"vulnConfidentialityImpact": "HIGH",
|
|
"vulnIntegrityImpact": "HIGH",
|
|
"vulnerabilityResponseEffort": "NOT_DEFINED"
|
|
},
|
|
"format": "CVSS"
|
|
},
|
|
{
|
|
"cvssV3_1": {
|
|
"attackComplexity": "LOW",
|
|
"attackVector": "NETWORK",
|
|
"availabilityImpact": "HIGH",
|
|
"baseScore": 9.8,
|
|
"baseSeverity": "CRITICAL",
|
|
"confidentialityImpact": "HIGH",
|
|
"integrityImpact": "HIGH",
|
|
"privilegesRequired": "NONE",
|
|
"scope": "UNCHANGED",
|
|
"userInteraction": "NONE",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
|
|
"version": "3.1"
|
|
},
|
|
"format": "CVSS"
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://github.com/EmilStenstrom/justhtml/security/advisories/GHSA-c9vm-hv86-f23r",
|
|
"tags": [
|
|
"vendor-advisory"
|
|
],
|
|
"name": "GitHub Security Advisory (GHSA-c9vm-hv86-f23r)"
|
|
},
|
|
{
|
|
"name": "VulnCheck Advisory: justhtml before 1.15.0 Multiple Security Issues",
|
|
"tags": [
|
|
"third-party-advisory"
|
|
],
|
|
"url": "https://www.vulncheck.com/advisories/justhtml-before-multiple-security-issues"
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"value": "EmilStenstrom",
|
|
"type": "coordinator"
|
|
}
|
|
],
|
|
"x_generator": {
|
|
"engine": "vulncheck-endgame"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-08-26T16:07:56.131062Z",
|
|
"id": "CVE-2026-5388",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "yes"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-08-26T16:16:10.959Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |