CVE-2021-3916 - Vulnerability Details - OpenCVE

Description

bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Published: 2021-11-05

Score: 6.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

bookstackapp

bookstackapp/bookstack

affected

Version	Status	Constraints
`unspecified`	affected	< 21.10.3

Configuration 1 [-]

cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-27136	bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00397.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/bookstackapp/bookstack/commit/43830a372fc51a8793199d04a34c3f4ebdfccc7b
https://huntr.dev/bounties/0be32e6b-7c48-43f0-9cec-433000ad8f64

History

No history.

Subscriptions

Bookstackapp Bookstack

MITRE

Status: PUBLISHED

Assigner: @huntrdev

Published: 2021-11-05T14:50:19.000Z

Updated: 2024-08-03T17:09:09.688Z

Reserved: 2021-10-31T00:00:00.000Z

Link: CVE-2021-3916

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-11-05T15:15:07.890

Modified: 2024-11-21T06:22:46.130

Link: CVE-2021-3916

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-22

{"containers": {"cna": {"affected": [{"product": "bookstackapp/bookstack", "vendor": "bookstackapp", "versions": [{"lessThan": "21.10.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-11-05T14:50:19.000Z", "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntrdev"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://huntr.dev/bounties/0be32e6b-7c48-43f0-9cec-433000ad8f64"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/bookstackapp/bookstack/commit/43830a372fc51a8793199d04a34c3f4ebdfccc7b"}], "source": {"advisory": "0be32e6b-7c48-43f0-9cec-433000ad8f64", "discovery": "EXTERNAL"}, "title": "Path Traversal in bookstackapp/bookstack", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@huntr.dev", "ID": "CVE-2021-3916", "STATE": "PUBLIC", "TITLE": "Path Traversal in bookstackapp/bookstack"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "bookstackapp/bookstack", "version": {"version_data": [{"version_affected": "<", "version_value": "21.10.3"}]}}]}, "vendor_name": "bookstackapp"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}]}, "references": {"reference_data": [{"name": "https://huntr.dev/bounties/0be32e6b-7c48-43f0-9cec-433000ad8f64", "refsource": "CONFIRM", "url": "https://huntr.dev/bounties/0be32e6b-7c48-43f0-9cec-433000ad8f64"}, {"name": "https://github.com/bookstackapp/bookstack/commit/43830a372fc51a8793199d04a34c3f4ebdfccc7b", "refsource": "MISC", "url": "https://github.com/bookstackapp/bookstack/commit/43830a372fc51a8793199d04a34c3f4ebdfccc7b"}]}, "source": {"advisory": "0be32e6b-7c48-43f0-9cec-433000ad8f64", "discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.688Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://huntr.dev/bounties/0be32e6b-7c48-43f0-9cec-433000ad8f64"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bookstackapp/bookstack/commit/43830a372fc51a8793199d04a34c3f4ebdfccc7b"}]}]}, "cveMetadata": {"assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "cveId": "CVE-2021-3916", "datePublished": "2021-11-05T14:50:19.000Z", "dateReserved": "2021-10-31T00:00:00.000Z", "dateUpdated": "2024-08-03T17:09:09.688Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*", "matchCriteriaId": "8A95589D-22C1-4F53-827C-5CB7BD5B1D1E", "versionEndExcluding": "21.10.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}, {"lang": "es", "value": "bookstack es vulnerable a una Limitaci\u00f3n Inapropiada de un Nombre de Ruta a un Directorio Restringido (\"Salto de Ruta\")"}], "id": "CVE-2021-3916", "lastModified": "2024-11-21T06:22:46.130", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security@huntr.dev", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-11-05T15:15:07.890", "references": [{"source": "security@huntr.dev", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/bookstackapp/bookstack/commit/43830a372fc51a8793199d04a34c3f4ebdfccc7b"}, {"source": "security@huntr.dev", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/0be32e6b-7c48-43f0-9cec-433000ad8f64"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/bookstackapp/bookstack/commit/43830a372fc51a8793199d04a34c3f4ebdfccc7b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/0be32e6b-7c48-43f0-9cec-433000ad8f64"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security@huntr.dev", "type": "Secondary"}]}