Search
Find a vulnerability
Search criteria
2 vulnerabilities found for backdrop by backdrop
CVE-2026-104476 (GCVE-0-2026-104476)
Vulnerability from nvd – Published: 2026-10-02 23:28 – Updated: 2026-10-05 17:09
VLAI
EPSS
VEX
Title
Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive
Summary
Backdrop CMS before 1.35.1 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve configuration export archives left on the server after transfer. Attackers can download compressed archives generated by users with configuration export permission to obtain the full site configuration, including sensitive settings.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 17:08 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/backdrop/backdrop/commit/1ae67… | patch |
| https://backdropcms.org/security/backdrop-sa-core… | vendor-advisory |
| https://github.com/backdrop/backdrop | product |
| https://www.vulncheck.com/advisories/backdrop-cms… | third-party-advisory |
Impacted products
Date Public
2026-09-23 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-104476",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-05T17:08:44.232756Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-05T17:09:54.802Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "backdrop",
"vendor": "backdrop",
"versions": [
{
"lessThan": "1.35.1",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "1.35.1",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:backdropcms:backdrop:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.35.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Dilip Choudhary"
}
],
"datePublic": "2026-09-23T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Backdrop CMS before 1.35.1 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve configuration export archives left on the server after transfer. Attackers can download compressed archives generated by users with configuration export permission to obtain the full site configuration, including sensitive settings."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T23:28:46.804Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/backdrop/backdrop/commit/1ae67061d9d487bb6cb3b8611191354052f34749"
},
{
"name": "BACKDROP-SA-CORE-2026-006",
"tags": [
"vendor-advisory"
],
"url": "https://backdropcms.org/security/backdrop-sa-core-2026-006"
},
{
"tags": [
"product"
],
"url": "https://github.com/backdrop/backdrop"
},
{
"name": "VulnCheck Advisory: Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/backdrop-cms-before-1.35.1-information-disclosure-via-configuration-export-archive"
}
],
"title": "Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-104476",
"datePublished": "2026-10-02T23:28:46.804Z",
"dateReserved": "2026-10-02T00:55:58.388Z",
"dateUpdated": "2026-10-05T17:09:54.802Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-104476 (GCVE-0-2026-104476)
Vulnerability from cvelistv5 – Published: 2026-10-02 23:28 – Updated: 2026-10-05 17:09
VLAI
EPSS
VEX
Title
Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive
Summary
Backdrop CMS before 1.35.1 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve configuration export archives left on the server after transfer. Attackers can download compressed archives generated by users with configuration export permission to obtain the full site configuration, including sensitive settings.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 17:08 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/backdrop/backdrop/commit/1ae67… | patch |
| https://backdropcms.org/security/backdrop-sa-core… | vendor-advisory |
| https://github.com/backdrop/backdrop | product |
| https://www.vulncheck.com/advisories/backdrop-cms… | third-party-advisory |
Impacted products
Date Public
2026-09-23 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-104476",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-05T17:08:44.232756Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-05T17:09:54.802Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "backdrop",
"vendor": "backdrop",
"versions": [
{
"lessThan": "1.35.1",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "1.35.1",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:backdropcms:backdrop:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.35.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Dilip Choudhary"
}
],
"datePublic": "2026-09-23T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Backdrop CMS before 1.35.1 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve configuration export archives left on the server after transfer. Attackers can download compressed archives generated by users with configuration export permission to obtain the full site configuration, including sensitive settings."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T23:28:46.804Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/backdrop/backdrop/commit/1ae67061d9d487bb6cb3b8611191354052f34749"
},
{
"name": "BACKDROP-SA-CORE-2026-006",
"tags": [
"vendor-advisory"
],
"url": "https://backdropcms.org/security/backdrop-sa-core-2026-006"
},
{
"tags": [
"product"
],
"url": "https://github.com/backdrop/backdrop"
},
{
"name": "VulnCheck Advisory: Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/backdrop-cms-before-1.35.1-information-disclosure-via-configuration-export-archive"
}
],
"title": "Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-104476",
"datePublished": "2026-10-02T23:28:46.804Z",
"dateReserved": "2026-10-02T00:55:58.388Z",
"dateUpdated": "2026-10-05T17:09:54.802Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}