{"id":"GHSA-qwx8-mxxx-mg96","summary":"wallabag contains Improper Authorization via export feature","details":"# Description\n\nThe export feature lets a user export a single entry or a set of entries in a given format (_e.g. PDF, MOBI, TXT_).\n\nFor example, `https://yourinstance.wallabag.org/export/45.pdf` will export the entry with id 45 in PDF format.\n\nSince wallabag 2.0.0-alpha.1, this feature is vulnerable to an insecure direct object reference attack. A logged user can export any single entry without ownership validation.\n\nThis is due to a lack of access validation in the `downloadEntryAction` method.\n\n**You should immediately patch your instance to version 2.5.3 or higher if you have more than one user and/or having open registration.**\n\n# Resolution\n\nA user check is now done in the vulnerable method before sending the exported entry.\n\nThe `Entry` retrieval through a `ParamConverter` has also been replaced with a call to the `EntryRepository` in order to prevent any information disclosure through response discrepancy.\n\n# Workaround\n\nIf you are unable to update to the latest version or if you want to temporarily limit risk of exploitation, you may consider blocking requests to the endpoint `/export/*`.\n\nE.g. with nginx:\n\n``` nginx\n    location /export {\n        deny all;\n    }\n```\n\n# Credits\n\nWe would like to thank @bAuh0lz for reporting this issue through huntr.dev.\n\nReference: https://www.huntr.dev/bounties/3adef66f-fc86-4e6d-a540-2ffa59342ff0/ ","aliases":["CVE-2023-0609"],"modified":"2023-11-01T05:00:40.571261Z","published":"2023-02-02T19:26:44Z","database_specific":{"github_reviewed_at":"2023-02-02T19:26:44Z","nvd_published_at":null,"cwe_ids":["CWE-285"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/wallabag/wallabag/security/advisories/GHSA-qwx8-mxxx-mg96"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0609"},{"type":"WEB","url":"https://github.com/wallabag/wallabag/commit/0f7460dbab9e29f4f7d2944aca20210f828b6abb"},{"type":"PACKAGE","url":"https://github.com/wallabag/wallabag"},{"type":"WEB","url":"https://huntr.dev/bounties/3adef66f-fc86-4e6d-a540-2ffa59342ff0"}],"affected":[{"package":{"name":"wallabag/wallabag","ecosystem":"Packagist","purl":"pkg:composer/wallabag/wallabag"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0-alpha.1"},{"fixed":"2.5.3"}]}],"versions":["2.0.0","2.0.0-alpha.1","2.0.0-alpha.2","2.0.0-beta.1","2.0.0-beta.2","2.0.1","2.0.2","2.0.3","2.0.4","2.0.5","2.0.6","2.0.7","2.0.8","2.1.0","2.1.1","2.1.2","2.1.3","2.1.4","2.1.5","2.1.6","2.1.6.1","2.2.0","2.2.1","2.2.2","2.2.3","2.3.0","2.3.1","2.3.2","2.3.3","2.3.4","2.3.5","2.3.6","2.3.7","2.3.8","2.4.0","2.4.1","2.4.2","2.4.3","2.5.0","2.5.1","2.5.2"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/02/GHSA-qwx8-mxxx-mg96/GHSA-qwx8-mxxx-mg96.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}