{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42207","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-25T05:04:37.027Z","datePublished":"2026-05-15T17:06:40.973Z","dateUpdated":"2026-05-15T17:50:25.297Z"},"containers":{"cna":{"title":"Magento LTS: Open Redirect via Unvalidated `uenc` Parameter in `stockAction()` - magento-lts","problemTypes":[{"descriptions":[{"cweId":"CWE-601","lang":"en","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/OpenMage/magento-lts/security/advisories/GHSA-qpgq-5g92-j5q8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OpenMage/magento-lts/security/advisories/GHSA-qpgq-5g92-j5q8"}],"affected":[{"vendor":"OpenMage","product":"magento-lts","versions":[{"version":"< 20.18.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-05-15T17:06:40.973Z"},"descriptions":[{"lang":"en","value":"Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to 20.18.0, Mage_ProductAlert_AddController::stockAction() reads the uenc query parameter and passes it directly to $this->_redirectUrl($backUrl) without calling $this->_isUrlInternal(). When the supplied product_id does not match any catalog product, the server issues an unvalidated HTTP 302 redirect to whatever URL was provided as uenc. This vulnerability is fixed in 20.18.0."}],"source":{"advisory":"GHSA-qpgq-5g92-j5q8","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/OpenMage/magento-lts/security/advisories/GHSA-qpgq-5g92-j5q8","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-15T17:50:03.433120Z","id":"CVE-2026-42207","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-15T17:50:25.297Z"}}]}}