169 lines
8.2 KiB
JSON
169 lines
8.2 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-2026-8428",
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"assignerOrgId": "ff5b8ace-8b95-4078-9743-eac1ca5451de",
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"state": "PUBLISHED",
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"assignerShortName": "ConcreteCMS",
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"dateReserved": "2026-05-12T18:07:11.189Z",
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"datePublished": "2026-05-21T20:24:11.572Z",
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"dateUpdated": "2026-05-22T13:23:49.586Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "ff5b8ace-8b95-4078-9743-eac1ca5451de",
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"shortName": "ConcreteCMS",
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"dateUpdated": "2026-05-21T20:24:11.572Z"
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},
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"title": "CSRF token is not validated in the core CMS update controller for Concrete CMS 9.5.0 and below",
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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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"cweId": "CWE-352",
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"description": "CWE-352 Cross-Site request forgery (CSRF)",
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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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"lang": "en",
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"cweId": "CWE-829",
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"description": "CWE-829 Inclusion of functionality from untrusted control sphere",
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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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"impacts": [
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{
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"capecId": "CAPEC-186",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-186 Malicious Software Update"
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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": "Concrete CMS",
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"product": "Concrete CMS",
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"collectionURL": "https://github.com/concretecms/concretecms",
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"repo": "https://github.com/concretecms/concretecms",
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"versions": [
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{
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"status": "affected",
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"version": "5.0",
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"lessThanOrEqual": "9.5.0",
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"versionType": "git"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "Concrete CMS 9.5.0 and below emits a CSRF token in the local_available_update.php view ($token->output('do_update')) but the corresponding do_update() method in concrete/controllers/single_page/dashboard/system/update/update.php never calls $this->token->validate('do_update'). The form is rendered as a POST form, meaning the token reaches the browser, but because the controller discards it without verification, an attacker can craft a cross-site POST that triggers a core CMS update to an attacker-specified version string. In order to be vulnerable, theictim must be passing canUpgrade()anda valid update version must be present under DIR_CORE_UPDATES. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "Concrete CMS 9.5.0 and below emits a CSRF token in the <code>local_available_update.php</code> view (<code>$token->output('do_update')</code>) but the corresponding <code>do_update()</code> method in <code>concrete/controllers/single_page/dashboard/system/update/update.php</code> never calls <code>$this->token->validate('do_update')</code>. The form is rendered as a POST form, meaning the token reaches the browser, but because the controller discards it without verification, an attacker can craft a cross-site POST that triggers a core CMS update to an attacker-specified version string. In order to be vulnerable, theictim must be passing <code>canUpgrade()and</code>a valid update version must be present under <code>DIR_CORE_UPDATES</code>. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting.<br>"
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}
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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://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes",
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"tags": [
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"release-notes"
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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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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "ACTIVE",
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"vulnConfidentialityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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"subIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subAvailabilityImpact": "NONE",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "HIGH",
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"baseScore": 7.5,
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"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
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}
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.2"
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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": "2026-05-22T13:23:39.070790Z",
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"id": "CVE-2026-8428",
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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": "total"
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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": "2026-05-22T13:23:49.586Z"
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}
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}
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]
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}
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} |