{"id":"CVE-2026-112003","kind":"vulnerability","aliases":["CVE-2026-112003"],"related":[],"title":"ProjectSend: path alias flaw lets staff delete other owners' files","description":"ProjectSend 2.0.0 before 2.7.0 contains a path validation flaw in OrphanFileScanner::isOrphan() that allows staff with import_orphans permission to treat tracked files as orphans. Attackers can submit ./ path aliases to the orphans import or delete endpoints, deleting or adopting other owners' files while bypassing delete_others_files.","summary":"ProjectSend 2.0.0 before 2.7.0 fails to validate paths in its orphan-file scanner, so a staff user with import_orphans permission can submit ./ path aliases. The attacker can delete or adopt files owned by other users, bypassing the delete_others_files permission.","severity":"medium","cvss":6.0,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","php","projectsend","self-hosted"],"not_affected_if":["no-import_orphans-staff","version-2.7.0-or-later"],"how_to_check":"- Check the installed ProjectSend version in the admin panel or the project's version file; affected if it is `2.0.0` up to but not including `2.7.0`.\n- Review which accounts have the import_orphans permission and whether they are staff who should not manage others' files.","fix":"- Upgrade ProjectSend to `2.7.0` or later.\n- Until upgraded, remove the import_orphans permission from non-essential staff accounts.","status":"open","published_at":"2026-10-18T12:17:12+00:00","first_seen_at":"2026-10-23T21:57:15+00:00","triaged_at":"2026-10-25T04:05:49+00:00","updated_at":"2026-10-25T04:05:49+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T04:05:49Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade ProjectSend to `2.7.0` or later.\n- Until upgraded, remove the import_orphans permission from non-essential staff accounts.","reach":"network","title":"ProjectSend: path alias flaw lets staff delete other owners' files","impact":"medium","summary":"ProjectSend 2.0.0 before 2.7.0 fails to validate paths in its orphan-file scanner, so a staff user with import_orphans permission can submit ./ path aliases. The attacker can delete or adopt files owned by other users, bypassing the delete_others_files permission.","category":"package","nicknames":[],"who_cares":["projectsend","self-hosted","php"],"confidence":0.6,"needs_auth":"yes","worst_case":"Staff user deletes or takes over other owners' uploaded files.","analyst_note":"","how_to_check":"- Check the installed ProjectSend version in the admin panel or the project's version file; affected if it is `2.0.0` up to but not including `2.7.0`.\n- Review which accounts have the import_orphans permission and whether they are staff who should not manage others' files.","needs_analyst":false,"not_affected_if":["version-2.7.0-or-later","no-import_orphans-staff"],"who_is_affected":"Sources do not name a product to avoid beyond ProjectSend itself; the flaw needs a staff account holding the import_orphans permission, so installations with only administrators or no orphan-import use are less exposed. Self-hosted ProjectSend instances in the 2.0.0 to 2.6.x range are the systems to look at.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000626,"input_tokens":3357,"output_tokens":580,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-112003':13A,16A '-2026':12A,15A '2.0.0':24B,67C '2.7.0':26B,69C 'adopt':54B,105C 'alia':3A 'alias':48B,95C 'allow':79C 'attack':50B,91C 'bypass':60B,110C 'contain':70C 'cve':11A,14A 'delet':7A,52B,62B,101C,103C,111C 'endpoint':102C 'fail':27B 'file':10A,35B,55B,64B,88C,108C,113C 'flaw':4A,74C 'host':22B 'import':42B,82C,99C 'isorphan':77C 'let':5A 'orphan':34B,43B,83C,90C,98C 'orphan-fil':33B 'orphanfilescann':76C 'other':63B,112C 'own':56B 'owner':9A,107C 'packag':17B 'path':2A,30B,47B,72C,94C 'permiss':44B,65B,84C 'php':18B 'projectsend':1A,19B,23B,66C 'scanner':36B 'self':21B 'self-host':20B 'staff':6A,39B,80C 'submit':46B,93C 'track':87C 'treat':86C 'user':40B,59B 'valid':29B,73C","nicknames":[],"mitigations":[],"who_affected":"Sources do not name a product to avoid beyond ProjectSend itself; the flaw needs a staff account holding the import_orphans permission, so installations with only administrators or no orphan-import use are less exposed. Self-hosted ProjectSend instances in the 2.0.0 to 2.6.x range are the systems to look at.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-18T12:17:12+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112003","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112003","severity":null,"published_at":"2026-10-18T12:17:12+00:00","modified_at":"2026-10-19T19:17:24+00:00","first_seen_at":"2026-10-23T21:57:15+00:00","fetched_at":"2026-10-23T22:28:55+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}