CVE-2026-53528 (GCVE-0-2026-53528)
Vulnerability from cvelistv5 – Published: 2026-08-21 21:26 – Updated: 2026-08-26 17:44
VLAI
EPSS
VEX
Title
FileWiki has path traversal in RenameAsset via unsanitized oldFilename parameter
Summary
LeafWiki is a self-hosted wiki. Versions 0.3.0 through 0.10.0 have a path traversal vulnerability in LeafWiki’s asset rename functionality. An authenticated user with editor permissions could move files that are accessible to the LeafWiki server process into a page’s asset directory. This could allow sensitive local files, such as the application database, to become downloadable as page assets. Users should update to version 0.10.1 or greater. As an additional mitigation, operators should ensure that the LeafWiki process runs with the least privileges necessary and does not have filesystem access to sensitive files outside the application’s required directories. Until a patch is applied, operators may reduce risk by restricting editor access to trusted users only and by limiting the filesystem permissions of the LeafWiki process.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 17:44 UTC
CWE
- CWE-23 - Relative Path Traversal
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/perber/leafwiki/security/advis… | x_refsource_CONFIRM |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-53528",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T17:44:20.453126Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-26T17:44:35.905Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "leafwiki",
"vendor": "perber",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.0, \u003c 0.10.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "LeafWiki is a self-hosted wiki. Versions 0.3.0 through 0.10.0 have a path traversal vulnerability in LeafWiki\u2019s asset rename functionality. An authenticated user with editor permissions could move files that are accessible to the LeafWiki server process into a page\u2019s asset directory. This could allow sensitive local files, such as the application database, to become downloadable as page assets. Users should update to version 0.10.1 or greater. As an additional mitigation, operators should ensure that the LeafWiki process runs with the least privileges necessary and does not have filesystem access to sensitive files outside the application\u2019s required directories. Until a patch is applied, operators may reduce risk by restricting editor access to trusted users only and by limiting the filesystem permissions of the LeafWiki process."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-23",
"description": "CWE-23: Relative Path Traversal",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T21:26:57.603Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/perber/leafwiki/security/advisories/GHSA-g2wp-jm5c-jqfj",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/perber/leafwiki/security/advisories/GHSA-g2wp-jm5c-jqfj"
}
],
"source": {
"advisory": "GHSA-g2wp-jm5c-jqfj",
"discovery": "UNKNOWN"
},
"title": "FileWiki has path traversal in RenameAsset via unsanitized oldFilename parameter"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-53528",
"datePublished": "2026-08-21T21:26:57.603Z",
"dateReserved": "2026-06-09T17:30:33.457Z",
"dateUpdated": "2026-08-26T17:44:35.905Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-53528",
"date": "2026-10-17",
"epss": "0.00548",
"percentile": "0.4468"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "leafwiki",
"vendor": "perber",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.0, \u003c 0.10.1"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "LeafWiki is a self-hosted wiki. Versions 0.3.0 through 0.10.0 have a path traversal vulnerability in LeafWiki\u2019s asset rename functionality. An authenticated user with editor permissions could move files that are accessible to the LeafWiki server process into a page\u2019s asset directory. This could allow sensitive local files, such as the application database, to become downloadable as page assets. Users should update to version 0.10.1 or greater. As an additional mitigation, operators should ensure that the LeafWiki process runs with the least privileges necessary and does not have filesystem access to sensitive files outside the application\u2019s required directories. Until a patch is applied, operators may reduce risk by restricting editor access to trusted users only and by limiting the filesystem permissions of the LeafWiki process."
},
{
"lang": "es",
"value": "LeafWiki es una wiki autoalojada. Las versiones 0.3.0 a la 0.10.0 tienen una vulnerabilidad de salto de ruta en la funcionalidad de renombrado de activos de LeafWiki. Un usuario autenticado con permisos de editor podr\u00eda mover archivos accesibles para el proceso del servidor de LeafWiki al directorio de activos de una p\u00e1gina. Esto podr\u00eda permitir que archivos locales sensibles, como la base de datos de la aplicaci\u00f3n, se vuelvan descargables como activos de p\u00e1gina. Los usuarios deber\u00edan actualizar a la versi\u00f3n 0.10.1 o superior. Como una mitigaci\u00f3n adicional, los operadores deber\u00edan asegurarse de que el proceso de LeafWiki se ejecute con los privilegios m\u00ednimos necesarios y no tenga acceso al sistema de archivos a archivos sensibles fuera de los directorios requeridos por la aplicaci\u00f3n. Hasta que se aplique un parche, los operadores pueden reducir el riesgo restringiendo el acceso de editor solo a usuarios de confianza y limitando los permisos del sistema de archivos del proceso de LeafWiki."
}
],
"id": "CVE-2026-53528",
"lastModified": "2026-10-12T16:10:00.220",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "security-advisories@github.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-53528",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T17:44:20.453126Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-21T22:16:39.290",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/perber/leafwiki/security/advisories/GHSA-g2wp-jm5c-jqfj"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-23"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-53528",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T17:44:20.453126Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-26T17:44:26.279Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "leafwiki",
"vendor": "perber",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.0, \u003c 0.10.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "LeafWiki is a self-hosted wiki. Versions 0.3.0 through 0.10.0 have a path traversal vulnerability in LeafWiki\u2019s asset rename functionality. An authenticated user with editor permissions could move files that are accessible to the LeafWiki server process into a page\u2019s asset directory. This could allow sensitive local files, such as the application database, to become downloadable as page assets. Users should update to version 0.10.1 or greater. As an additional mitigation, operators should ensure that the LeafWiki process runs with the least privileges necessary and does not have filesystem access to sensitive files outside the application\u2019s required directories. Until a patch is applied, operators may reduce risk by restricting editor access to trusted users only and by limiting the filesystem permissions of the LeafWiki process."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-23",
"description": "CWE-23: Relative Path Traversal",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T21:26:57.603Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/perber/leafwiki/security/advisories/GHSA-g2wp-jm5c-jqfj",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/perber/leafwiki/security/advisories/GHSA-g2wp-jm5c-jqfj"
}
],
"source": {
"advisory": "GHSA-g2wp-jm5c-jqfj",
"discovery": "UNKNOWN"
},
"title": "FileWiki has path traversal in RenameAsset via unsanitized oldFilename parameter"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-53528",
"datePublished": "2026-08-21T21:26:57.603Z",
"dateReserved": "2026-06-09T17:30:33.457Z",
"dateUpdated": "2026-08-26T17:44:35.905Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.