150 lines
6.5 KiB
JSON
150 lines
6.5 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-2026-55247",
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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": "2026-06-16T16:44:00.624Z",
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"datePublished": "2026-08-28T18:59:01.212Z",
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"dateUpdated": "2026-08-31T18:48:31.264Z"
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},
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"containers": {
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"cna": {
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"title": "plone.app.event: Denial of service via iCalendar import",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-400",
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"lang": "en",
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"description": "CWE-400: Uncontrolled Resource Consumption",
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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": "HIGH",
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"baseScore": 9.1,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"privilegesRequired": "LOW",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H",
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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/plone/plone.app.event/security/advisories/GHSA-r82h-mqw3-fc56",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/plone/plone.app.event/security/advisories/GHSA-r82h-mqw3-fc56"
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},
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{
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"name": "https://github.com/plone/plone.app.event/commit/1e3c83c15a24d1a789cdb012593505bc5620e28e",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/plone/plone.app.event/commit/1e3c83c15a24d1a789cdb012593505bc5620e28e"
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},
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{
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"name": "https://github.com/plone/plone.app.event/commit/4de5eb3ea9e4f7f1781622e6d64fc086629d1437",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/plone/plone.app.event/commit/4de5eb3ea9e4f7f1781622e6d64fc086629d1437"
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},
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{
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"name": "https://github.com/plone/plone.app.event/releases/tag/5.2.4",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/plone/plone.app.event/releases/tag/5.2.4"
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},
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{
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"name": "https://github.com/plone/plone.app.event/releases/tag/6.0.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/plone/plone.app.event/releases/tag/6.0.1"
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}
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],
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"affected": [
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{
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"vendor": "plone",
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"product": "plone.app.event",
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"versions": [
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{
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"version": "< 5.2.4",
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"status": "affected"
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},
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{
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"version": ">= 6.0.0, < 6.0.1",
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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": "2026-08-28T18:59:01.212Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "plone.app.event provides the event content type for Plone. Prior to versions 5.2.4 and 6.0.1, the iCalendar import in src/plone/app/event/ical/importer.py accepts insufficiently restricted calendar and event URLs, does not adequately bound downloaded bytes or imported events, and commits work per event. A logged-in editor can make the server request internal network resources or local calendar files, exhaust resources and take the site offline, and store a malicious event URL that executes script in another user's browser. The fix restricts accepted URLs, applies MAXIMUM_ICAL_IMPORT_SIZE_BYTES and MAXIMUM_ICAL_IMPORT_EVENTS limits, uses transaction savepoints, and validates event URLs. This issue is fixed in versions 5.2.4 and 6.0.1."
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}
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],
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"source": {
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"advisory": "GHSA-r82h-mqw3-fc56",
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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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"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": "2026-08-31T18:48:16.302616Z",
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"id": "CVE-2026-55247",
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"options": [
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{
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"Exploitation": "none"
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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": "2026-08-31T18:48:31.264Z"
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}
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}
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]
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}
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} |