202 lines
8.7 KiB
JSON
202 lines
8.7 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-2026-58657",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-07-01T21:54:37.946Z",
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"datePublished": "2026-07-08T13:49:12.183Z",
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"dateUpdated": "2026-10-08T15:23:30.638Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-10-08T15:23:30.638Z"
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},
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"datePublic": "2026-06-22T00:00:00.000Z",
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"title": "Grav - Stored CSS Injection via Markdown Image resize() Action",
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"descriptions": [
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{
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"lang": "en",
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"value": "Grav before 2.0.0 (affected through 2.0.0-rc.9 and the 2.0 branch) contains a stored CSS injection vulnerability in the Markdown image resize() media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute() fallbacks, but the resize() action in Excerpts::processMediaActions() writes caller-controlled values directly into the image's styleAttributes. A lower-privileged content editor who can edit page Markdown can store a crafted image URL with semicolon-delimited CSS declarations in the resize parameters, which are rendered into the final <img style=...> attribute when a higher-privileged reviewer/admin views the page or preview. This does not require JavaScript execution but enables UI redress/overlay and content-manipulation attacks (e.g., a full-viewport fixed overlay). Fixed in 2.0.0."
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
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"cweId": "CWE-79",
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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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"affected": [
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{
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"vendor": "Grav",
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"product": "Grav",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "2.0.0-rc.9",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "2.0.0"
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},
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{
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"version": "2.0.0",
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"status": "unaffected",
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"versionType": "semver"
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}
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],
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"packageURL": "pkg:composer/getgrav/grav"
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.0.0",
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"versionEndExcluding": "2.0.0"
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}
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]
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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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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "HIGH",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "LOW",
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"vulnIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "LOW",
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"subIntegrityImpact": "LOW",
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"subAvailabilityImpact": "NONE",
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"baseScore": 4.8,
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"baseSeverity": "MEDIUM"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "HIGH",
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"userInteraction": "REQUIRED",
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"scope": "CHANGED",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"availabilityImpact": "NONE",
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"baseScore": 4.8,
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"baseSeverity": "MEDIUM"
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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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"url": "https://github.com/getgrav/grav/security/advisories/GHSA-ffmg-hfvg-jhg9",
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"name": "GitHub Security Advisory (GHSA-ffmg-hfvg-jhg9)",
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"tags": [
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"vendor-advisory"
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]
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},
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{
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"url": "https://github.com/getgrav/grav/commit/6582166173bb8eb5869d96aea384e0e73777c94c",
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"name": "https://github.com/getgrav/grav/commit/6582166173bb8eb5869d96aea384e0e73777c94c",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://github.com/getgrav/grav/commit/e03d29aa0d3ece16d73c1ffccfa78df8bf5f28b8",
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"name": "https://github.com/getgrav/grav/commit/e03d29aa0d3ece16d73c1ffccfa78df8bf5f28b8",
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"tags": [
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"patch"
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]
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},
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{
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"name": "VulnCheck Advisory: Grav - Stored CSS Injection via Markdown Image resize() Action",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/grav-stored-css-injection-via-markdown-image-resize-action"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "DavidCarliez",
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"type": "reporter"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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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/getgrav/grav/security/advisories/GHSA-ffmg-hfvg-jhg9",
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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": "2026-07-08T14:21:29.168366Z",
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"id": "CVE-2026-58657",
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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": "2026-07-08T14:21:36.356Z"
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}
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}
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]
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}
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} |