{"id":"CVE-2026-42207","state":"PUBLISHED","title":"Magento LTS: Open Redirect via Unvalidated `uenc` Parameter in `stockAction()` - magento-lts","description":"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.","publishedAt":"2026-05-15T17:06:40.973Z","updatedAt":"2026-05-15T17:50:25.297Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["OpenMage magento-lts"],"affected":[{"vendor":"OpenMage","product":"magento-lts","versions":[{"version":"< 20.18.0","status":"affected"}]}],"references":["https://github.com/OpenMage/magento-lts/security/advisories/GHSA-qpgq-5g92-j5q8"],"weaknesses":["CWE-601"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/42xxx/CVE-2026-42207.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42207","state":"PUBLISHED","datePublished":"2026-05-15T17:06:40.973Z","dateUpdated":"2026-05-15T17:50:25.297Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-25T05:04:37.027Z"},"containers":{"cna":{"title":"Magento LTS: Open Redirect via Unvalidated `uenc` Parameter in `stockAction()` - magento-lts","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."}],"affected":[{"vendor":"OpenMage","product":"magento-lts","versions":[{"version":"< 20.18.0","status":"affected"}]}],"references":[{"url":"https://github.com/OpenMage/magento-lts/security/advisories/GHSA-qpgq-5g92-j5q8","name":"https://github.com/OpenMage/magento-lts/security/advisories/GHSA-qpgq-5g92-j5q8","tags":["x_refsource_CONFIRM"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-601","lang":"en","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-15T17:06:40.973Z"},"source":{"advisory":"GHSA-qpgq-5g92-j5q8","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-15T17:50:25.297Z"}}]}}}