CVE-2026-1895

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Affected is the function applyWipLimit of the file models/lists.js of the component Attachment Storage Handler. Executing a manipulation can lead to improper access controls. The attack can be executed remotely. Upgrading to version 8.21 is able to address this issue. This patch is called 8c0b4f79d8582932528ec2fdf2a4487c86770fb9. It is recommended to upgrade the affected component."}, {"lang": "es", "value": "Un fallo ha sido encontrado en WeKan hasta 8.20. Afectada es la funci\u00f3n applyWipLimit del archivo models/lists.js del componente Attachment Storage Handler. Ejecutar una manipulaci\u00f3n puede llevar a controles de acceso impropios. El ataque puede ser ejecutado de forma remota. Actualizar a la versi\u00f3n 8.21 es capaz de abordar este problema. Este parche se llama 8c0b4f79d8582932528ec2fdf2a4487c86770fb9. Se recomienda actualizar el componente afectado."}], "id": "CVE-2026-1895", "lastModified": "2026-06-17T10:16:40.850", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "cna@vuldb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-1895", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-05T14:57:16.070332Z", "version": "2.0.3"}}]}, "published": "2026-02-04T23:15:55.860", "references": [{"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://github.com/wekan/wekan/"}, {"source": "cna@vuldb.com", "tags": ["Patch"], "url": "https://github.com/wekan/wekan/commit/8c0b4f79d8582932528ec2fdf2a4487c86770fb9"}, {"source": "cna@vuldb.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/wekan/wekan/releases/tag/v8.21"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.344267"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.344267"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.742666"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?submit.742679"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-266"}, {"lang": "en", "value": "CWE-284"}], "source": "cna@vuldb.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-18T13:42:25.989334+00:00", "value": {"mitigation_remediation": ["Upgrade the WeKan installation to version\u00a08.21 or newer to apply the vendor patch that fixes the access\u2011control bug.", "After upgrading, review the role\u2011based permissions for attachment storage to confirm that only authorized users can view or upload attachments for lists marked WIP.", "Continuously monitor application logs for anomalous attachment access attempts, which may indicate exploitation attempts or misconfiguration."], "summary": {"action": "Patch", "impact": "Improper Access Control"}, "threat_synthesis": {"affected_systems": "WeKan installations up to version 8.20 are affected. All deployments that include the open\u2011source project WeKan are vulnerable until the fix in release 8.21, which incorporates commit\u00a08c0b4f79d8582932528ec2fdf2a4487c86770fb9, is applied.", "description_and_impact": "The flaw lies in the applyWipLimit function of WeKan\u2019s Attachment Storage Handler. Manipulating requests that invoke this function allows an attacker to bypass the intended access restrictions on list attachments, exposing sensitive files to unauthorized users. The weakness is a classic example of improper access control, corresponding to CWE\u2011266 and CWE\u2011284, and causes potential confidentiality and integrity violations without providing code execution. The problem is limited to data exposure and does not affect system availability.", "risk_and_exploitability": "The CVSS score of 5.3 labels the vulnerability as moderate severity, while the EPSS score of less than 1% indicates a low likelihood of exploitation. The vulnerability is not listed in the CISA KEV catalog. According to the description, the attack can be executed remotely with crafted requests to the web service; no local privileges are required to reach the flaw. The attacker can trigger the improper access control by targeting the applyWipLimit endpoint and gain unauthorized access to attachment data."}}}}, "created": "2026-02-05T11:39:57.350988+00:00", "updated": "2026-04-18T13:45:45.678854+00:00", "vendors": ["wekan_project", "wekan_project$PRODUCT$wekan"]}