{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40039", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-04-08T13:39:22.100Z", "datePublished": "2026-04-13T18:10:55.592Z", "dateUpdated": "2026-04-13T18:10:55.592Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-13T18:10:55.592Z"}, "datePublic": "2026-04-12T00:00:00.000Z", "title": "Pachno 1.0.6 Open Redirection via return_to Parameter", "descriptions": [{"lang": "en", "value": "Pachno 1.0.6 contains an open redirection vulnerability that allows attackers to redirect users to arbitrary external websites by manipulating the return_to parameter. Attackers can craft malicious login URLs with unvalidated return_to values to conduct phishing attacks and steal user credentials."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Authentication Bypass by Primary Weakness", "cweId": "CWE-305", "type": "CWE"}]}], "affected": [{"vendor": "pancho", "product": "Pachno", "versions": [{"version": "1.0.6", "status": "affected"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:pachno:pachno:1.0.6:*:*:*:*:*:*:*"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 7.1, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5981.php", "name": "Zero Science Lab Disclosure", "tags": ["third-party-advisory"]}, {"name": "VulnCheck Advisory: Pachno 1.0.6 Open Redirection via return_to Parameter", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/pachno-open-redirection-via-return-to-parameter"}], "credits": [{"lang": "en", "value": "LiquidWorm as Gjoko Krstic of Zero Science Lab", "type": "finder"}], "x_generator": {"engine": "vulncheck"}}}}

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