CVE-2026-41193

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{"affected": [{"affectedData": [{"product": "freescout", "vendor": "freescout-help-desk", "versions": [{"status": "affected", "version": "< 1.8.215"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, FreeScout's module installation feature extracts ZIP archives without validating file paths, allowing an authenticated admin to write files arbitrarily on the server filesystem via a specially crafted ZIP. Version 1.8.215 fixes the vulnerability."}], "id": "CVE-2026-41193", "lastModified": "2026-06-17T10:46:18.373", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-41193", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-21T19:55:35.622477Z", "version": "2.0.3"}}]}, "published": "2026-04-21T18:16:53.253", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/freescout-help-desk/freescout/commit/14f17a5cd22d217103a72b431b47b1f06996227b"}, {"source": "security-advisories@github.com", "url": "https://github.com/freescout-help-desk/freescout/releases/tag/1.8.215"}, {"source": "security-advisories@github.com", "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-r85m-5mc9-cc9w"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-r85m-5mc9-cc9w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.8.215)"}}], "enrichment": {"confidence": 98.0, "confidence_source": "matching", "scores": [{"score": 98.0, "source": "matching"}]}, "original": {"product": "freescout", "source": "cna", "vendor": "freescout-help-desk"}, "product": "freescout", "vendor": "freescout_helpdesk"}], "analysis": {"en": {"generated_at": "2026-04-21T22:31:40.586394+00:00", "value": {"mitigation_remediation": ["Apply the 1.8.215 patch or newer to FreeScout.", "If a patch cannot be applied immediately, restrict module uploads to administrators who verify ZIP contents and enforce strict path validation before extraction.", "Configure the server to disallow writes outside the designated module directory and monitor for unauthorized file creation."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the FreeScout help desk platform (freescout-help-desk:freescout). All releases prior to 1.8.215 are impacted, while updating to version 1.8.215 or newer removes the flaw.", "description_and_impact": "FreeScout is a free, self\u2011hosted help desk that allows administrators to install modules via uploaded ZIP archives. Before version 1.8.215 the extraction process does not validate the file paths inside the ZIP, which permits a maliciously crafted archive to write files to arbitrary locations on the server. An authenticated administrator who can install modules might therefore upload and place any file, including executable scripts, resulting in remote code execution.", "risk_and_exploitability": "The CVSS score of 9.1 indicates high severity. The EPSS score is not currently available and the flaw is not listed in the CISA KEV catalog, but the risk remains significant due to the serious impact. Exploitation requires an authenticated administrator with module upload privileges; an attacker who obtains or compromises such credentials can create arbitrary files on the server, leading to remote code execution. The high CVSS and the potential to run arbitrary code make this a serious threat for any deployment hosting FreeScout."}}}}, "created": "2026-04-21T18:30:27.388536+00:00", "updated": "2026-04-21T22:45:16.047382+00:00", "vendors": ["freescout_helpdesk", "freescout_helpdesk$PRODUCT$freescout"]}