160 lines
6.6 KiB
JSON
160 lines
6.6 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-71478",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-08-06T19:56:23.724Z",
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"datePublished": "2026-08-06T20:30:32.045Z",
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"dateUpdated": "2026-08-07T17:05:57.244Z"
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},
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"containers": {
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"cna": {
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"title": "league/commonmark: AttributesExtension href/src unsafe-link filter bypass via embedded control bytes",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-79",
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"lang": "en",
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"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-86",
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"lang": "en",
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"description": "CWE-86: Improper Neutralization of Invalid Characters in Identifiers in Web Pages",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-692",
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"lang": "en",
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"description": "CWE-692: Incomplete Denylist to Cross-Site Scripting",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 6.1,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/thephpleague/commonmark/security/advisories/GHSA-29pj-957v-52mc",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/thephpleague/commonmark/security/advisories/GHSA-29pj-957v-52mc"
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},
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{
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"name": "https://github.com/thephpleague/commonmark/commit/493a5aa7d65754b73846006eaff9c2c4431a8e2c",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/thephpleague/commonmark/commit/493a5aa7d65754b73846006eaff9c2c4431a8e2c"
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},
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{
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"name": "https://github.com/thephpleague/commonmark/releases/tag/2.9.0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/thephpleague/commonmark/releases/tag/2.9.0"
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}
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],
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"affected": [
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{
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"vendor": "thephpleague",
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"product": "commonmark",
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"versions": [
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{
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"version": ">= 1.5.0, <= 2.8.3",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-08-06T20:30:32.045Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "league/commonmark is a PHP library for parsing and rendering CommonMark Markdown. From 1.5.0 until 2.9.0, the AttributesExtension's href and src unsafe-link filter can be bypassed by embedding control bytes, such as a tab, carriage return, line feed, or leading C0 control character, in a javascript: URL that browsers discard before parsing the scheme, causing the browser to still execute the script even when the unsafe-link filter is enabled. This issue is fixed in 2.9.0."
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}
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],
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"source": {
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"advisory": "GHSA-29pj-957v-52mc",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/thephpleague/commonmark/security/advisories/GHSA-29pj-957v-52mc",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-08-07T17:04:55.894840Z",
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"id": "CVE-2026-71478",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-08-07T17:05:57.244Z"
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}
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}
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]
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}
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} |