Files
vuln-cve/data/2026/8xxx/CVE-2026-8340.json
T

179 lines
7.7 KiB
JSON
Raw Blame History

This file contains invisible Unicode characters
This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-8340",
"assignerOrgId": "ff5b8ace-8b95-4078-9743-eac1ca5451de",
"state": "PUBLISHED",
"assignerShortName": "ConcreteCMS",
"dateReserved": "2026-05-11T16:05:50.640Z",
"datePublished": "2026-05-22T13:58:55.844Z",
"dateUpdated": "2026-05-22T17:26:12.832Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "ff5b8ace-8b95-4078-9743-eac1ca5451de",
"shortName": "ConcreteCMS",
"dateUpdated": "2026-05-22T13:58:55.844Z"
},
"title": "Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\\File::approveVersion",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-352",
"description": "CWE-352 Cross-Site request forgery (CSRF)",
"type": "CWE"
}
]
}
],
"impacts": [
{
"capecId": "CAPEC-62",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-62 Cross Site Request Forgery"
}
]
},
{
"capecId": "CAPEC-60",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-60 Reusing Session IDs (aka Session Replay)"
}
]
}
],
"affected": [
{
"vendor": "Concrete CMS",
"product": "Concrete CMS",
"collectionURL": "https://github.com/concretecms/concretecms",
"repo": "https://github.com/concretecms/concretecms",
"versions": [
{
"status": "affected",
"version": "5.0",
"lessThanOrEqual": "9.5.0",
"versionType": "git"
}
],
"defaultStatus": "unaffected"
}
],
"descriptions": [
{
"lang": "en",
"value": "Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\\File::approveVersion. Victim with edit_file_contents permission is CSRF'd into publishing an attacker-chosen previously-uploaded version (downgrade to an older version of a file, or activation of a co-editor's unpublished version). The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Winston Crooker for reporting.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "<div><span>Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backend\\File::approveVersion.&nbsp;</span><span>Victim with&nbsp;</span><code>edit_file_contents</code><span>&nbsp;</span><span>permission is CSRF'd into publishing an attacker-chosen previously-uploaded version (downgrade to an older version of a file, or activation of a co-editor's unpublished version).&nbsp;</span><span>The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector&nbsp;CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Winston Crooker for reporting.&nbsp;</span></div>"
}
]
}
],
"references": [
{
"url": "https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes",
"tags": [
"release-notes"
]
}
],
"metrics": [
{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
],
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"userInteraction": "PASSIVE",
"vulnConfidentialityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"subIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"version": "4.0",
"baseSeverity": "LOW",
"baseScore": 2.3,
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
}
}
],
"credits": [
{
"lang": "en",
"value": "Winston Crooker",
"type": "finder"
}
],
"source": {
"defect": [
"HackerOne"
],
"advisory": "https://hackerone.com/reports/3682856",
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-22T17:25:35.635711Z",
"id": "CVE-2026-8340",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-05-22T17:26:12.832Z"
}
}
]
}
}